TH350, TH250. Get the Best Performance with JEGS Transmission Oil Cooler Lines for 1968-1972 Chevrolet Chevelle, El Camino, Malibu w/TH350 Trans. These work great for all TH-350 automatic transmission models. In many cases an installed is replacing a TH350 that uses a kickdown cable and not a TV cable with their new overdrive trans and since the brackets for the TH350 kickdown cable work with the TV cable and the carb already has a stud. Transmission Cooler Line, TH350/400, 1966-67 Chevelle/El Camino. 82 out of 5 stars. Finally, Earl’s manufactures curved coolers that have a width of 11. I have the middle diagram and one from TCI The variance in lengths from TCI say a PG with a 12" tail (what I have) and a 350 with a 6" tail the overall length is within 1/8" of each other so no big deal. Racing heavily stresses the transmission and causes it to heat very rapidly. Basically, any cooler with a face height up to 18½ inches can be created. Cooling lines on turbo 350 which is oil out. Turbo 350 diagram turbo 350 transmission rebuild manual. Flatdog, Mar 19, 2006. TH350 straight fitting (NPS) to trans case is 25 ft/lb, tapered (NPT) is 15 ft/lb. Splice your toggle switch inline after the brake pedal switch and your good to go. Register or Log In To remove these advertisements. [Stainless Steel] 13500 parts at JEGS. Derale. Even better than that, one could dream up a thermostat controlled line system where NONE of the fluid goes to the radiator or external cooler until it warms up. Fits ST300, TH350 & TH400. Automatic Transmission Vacuum Line, Steel, TH350, Chevy, Each. I noticed that after a little over a gallon I got air bubbles. 95. Designed to work without. org on 2022-01-08 by guest builder and technical writer David Vizard turns his attention to extracting serious horsepower from small-block Chevy engines while doing it on a budget. I'm getting ready to install a remote trans filter. 95 $ 69. Then the bottom line goes back to the transmission with the cooler fluid. com offers genuine Transmission Oil Cooler & Lines for 2005 Dodge Ram 2500 with great price and fast. It circulates the hot fluid away to the radiator via cooler lines and returns the cooled fluid back to the transmission. Ford Transmission Cooler Fittings. Automatic Transmission Cooler Lines, Flexible, 60 in. Check out free battery charging and engine diagnostic testing while you are in store. Or email us using our CONTACT link above. The reasoning was the radiator is cooler at the bottom. 1978 - 1981 Firebird and Trans Am Transmission Cooler Line Set for Turbo 350, 5/16" Original Steel New transmission cooler lines for your 78 - 81 Firebird or Trans Am. Dash. The TH400 is conservatively rated at 450 ft. Turbo 350 Transmission Cooler Line Diagram. Weve got a great one right here that will help you get the job done. Reply Quote. Verify the ends thread into your cooler. 2602 posts · Joined 2004. if your trans has the fac. th 350 cooler line oil flow hot rod forum. It is a TH350 as well. CTT72B1. Part Number: SUM-230321 4. Going to do this swap soon using a Turbo 350 from a 70 GM van, 6" tail in my 67 327. A radiator has the upper inlet introducing the hot coolant from the engine into the radiator. Add to Cart. Part #: FTV7801 | Manufacturer Part #: FTV7801 $41. Order a TH350 transmission kit at JEGS High Performance. Add to Cart. 07. Automatic Transmission Cooler Lines, Steel, Chevy, TH350, Pair. Flared line case fitting #M462C. May 13th, 2018 - Which line is the outgoing line to the tranny cooler on a TH350 T 350 cooler lines Fitting Location Thread Size Flow Direction Th350 Oil Flow Diagram socalre solutions April 22nd, 2018 - Browse and Read Th350 Oil Flow Diagram Th350 Oil Flow Diagram New updated The latest book from a very famous author finally comes out. Whether you replace the torque converter or not, excessive wear, scoring, or other damage. Use the wrench to loosen the nut located at the end of. Lockup converter torque wiring diagram computer 700r4 lock without gm transmission switch r4 chevy valve turbo body engine rod th350Diagram transmission cooler th350 ford cooling schematic wiring 700r4 derale installation aluminum duty lock chart e4od coated pan powder finish. o The lower transmission coolant. Does it even matter?. If you are restoring the car, you'll probobly want a new crossmember that's not trimmed. The most-effective verification technique is to temporarily bypass the cooler circuit and re-test. 160032A 2008 F-150, Mark LT 4X2 4. 5/16" Line x 1/4" pipe. #2 on Diagram Only-Genuine OE Factory Original Item. TH350 Cooler Lines The 1967 - 1972 Chevrolet & GMC Pickups Message Board. 919 inches. Web official suzuki parts list easy repairs with. If fluid comes OUT of the upper line, it is NOT a return line to the transmission! That means the fluid is being pumped into the radiator to be cooled. DesignBuy Dewhel -6 AN Transmission Oil Cooler Adapter Fitting For GM Turbo 350 400 4L60E 200R 700R: Coolers. Web Summit Racing Flexible Automatic Transmission Cooler Lines SUM-230322-B. 1980 - 1981 Firebird and Trans Am TH-350 Transmission Modulator Vacuum Line for Pontiac 301 NON-Turbo Engine, Original Steel. Lowest Price Guarantee. Hello all. 440-T4 (4T60)/ 4T60E . Source: xolia. com 4 / 6TH350 Cooler Lines The 1967 - 1972 Chevrolet & GMC Pickups Message Board. The vacuum modulator, together with the governor, controls the shift points on the TH350 transmission. Turbo 350 transmission cooler lines diagramTransmission th400 routing cooler line installuniversity avoid bend degree weird shown length side Th400 lines cooler transmission fittings pre made shop misc trackhawk demon hellcat drivetrainTh400 cooler lines diagram. GM TH350/TH400/700R4. 1/4" NPSM Male to -6AN Male. Suits GM TH350 & TH400 gearboxes, easily plumb your Transmission Cooler with AN lines and fittings. $62. Into the bottom of the transmission cooler. #1 · Mar 16, 2009 I have a TH350, and I've installed new cooling lines, have not started the car yet. 10 Diagram Th350 Cooler Lines In And Out Luceeinayat Chevy 350 with a th350 transmission. #15 · Jun 28, 2020. While Gearstar's entry Level 2 TH350 (left) will handle 450hp, Gearstar's Level 4 will handle even more and is rated to 700hp. TH350. Web Diagram Th350 Cooler Lines In And Out Thread. Chris. Vendor. If you had it reversed, the pump would be. View Turbo 350 (TH350) transmission cooler line diagrams and cooler flow path that route to the radiator and to an external transmission cooler. which causes all the fuild to drain out it i,f it sits for very long. 1972 Chevrolet GMC Blazer Jimmy 4WD T350 5/16" Trans Cooler Lines 2pc, OE Steel. I made new lines and installed a cooler when I installed the tranny. Return Cooler Line Chart Transmission Location 03-72LE (A44DE) Rear 125, 125C (3T40) Top 180, 180C (3L30) Rear 200, 200C Bottom 200-4R Bottom 300 (ST300) Top 325, 325-4L Top 350, 350C Top 4L30E (Isuzu) Rear 4L60E Top 4L80E Lower Front 4T40/5 Bottom 4T40E Lower 4T60E, 4T65E Horizontal Case FittingWiring diagram transmission chevy plug electrical schema oreo gm data silverado switch diagrams please light choose board Diagram wiring Wiring diagram switch safety neutral trans tcm soleno. It will be easier to install if you can remember how they were run before. Transmission Line Pressure Specifications Or Scroll Down to the Appropriate Line Pressure Chart GENERAL MOTORS FORD TH350 Pressure Test Forward Whether you need TH350 wiring diagram TH350Step 5. The biggest fitment issue. You will need to determine which line is the return for the transmission. TH-350C ALL 350C Transmission Parts. Excessive heat kills transmission and torque converter components . , it is very important to determine the send line and which line is the return line on a 4l60e transmission (inlet and outlet). $71. Web diagram th350 cooler lines in and out thursday, october 27, 2022 edit. TCI Automotive. Make sure you verify your transmissio… $95. Transmission Cooler Hose Line 70 Inch Flexible Stainless Steel SS Braided Oil Fuel Line Compatible with GM Chevy 1996 & Newer 4L80E 700R4 4L60 4L60E 4L65E,Turbo 350 400 200-200R4 Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge/Ram Models, Silver 32,966. Not Yet Reviewed. May 13th, 2018 - Which line is the outgoing line to the tranny cooler on a TH350 T 350 cooler lines Fitting Location Thread Size Flow Direction 3 /. 1966-67 Transmission Cooler Lines for Power Glide or Turbo 350 or 400, Stainless Steel. This enables the fluid to rise and push the air out of the rad cooler. However, that’s just a rule of thumb, so it could be the other. 700r4 Transmission Cooling Lines Engine Diagram And. TH-350C Filters. We just updated our "Avalanche" Buggy to LM7 5. which one is the sender, and which is the return?This kit uses Fragola Made in the USA lines and fittings! Included in the kit are: (2) Transmission Oil Port Fittings w/ #6 AN male ends. But to use an aluminum line that is designed as a carburated application fuel line for trans cooler line is asking for trouble. Because the transmission lengths are the same and the positioning of the crossmember can be easily modified, you need only change the transmission mount, add transmission cooler lines and change the shift indicator bezel to a TH350 shift pattern to complete the exchange. The 4L80E transmission is the advanced progeny of the legendary TurboHydramatic TH400 automatic transmission, and is based heavily on the 400 in both parts and strength, yet featuring an added overdrive gear, a lock-up torque converter and advanced electronic controls. 1967 - 1969 Firebird Turbo 350 Automatic Transmission Cooler Lines Set, OE Steel : Our Price: $ 57. Register or Log In To remove these advertisements. 1972. Powerglide - Dedenbear. 38+ diagram th350 cooler lines in and out Sabtu, 18 Februari 2023 Edit. th350 cooler line pressure the cooler line pressure on a th350 transmission is typically set between 40 and 50 psi. 1975-1981 Camaro Transmission Cooler Line, Turbo 350, 5/16 Steel High Quality Reproduction. Welcome to our blog, where we dive into the fascinating world of life knowledge, exploring topics ranging from scientific and. Also fits Transmissions w/ 1/4 in. Add To Cart. TH 350 cooler line oil flow Hot Rod. Includes 2 small "C" spring clips for mounting. Although the name later had to be changed because Peugeot had patented having a 0 in the middle of car model numbers, the 911 didn't let anything stand in the way of its becoming an iconic sports car. Not Yet Reviewed. Acemechanic. Cooler lines might need to be changed, but the fitting location is similar to the TH350's. This diagram showcases the various lines and connections that allow coolant to flow through the transmission, ensuring optimal performance and preventing overheating. 5 w/3. Turbo 350 transmission cooler lines diagramTransmission th400 routing cooler line installuniversity avoid bend degree weird shown length side Th400 lines cooler transmission fittings pre made shop misc trackhawk demon hellcat drivetrainTh400 cooler lines diagram. Th-350 Trans Cooler Routing The 1967 - 1972 Chevrolet & GMC Pickups Message Board. An Eckler's PDF that shows a TH350 installation has poor quality images but it looks like the transmission lines go through or behind the motor mounts. All Dash; Top of Dash Panels; Windshield Repair Panels; View All; Doors. Been away a while. 66 Chevy II 355SB TH350 03 Chevy Siverado 6. Remove the old lines and replace them with new ones. Includes: Black Fittings. Seal wears the shaft, replace both. 10 Diagram Th350 Cooler Lines In And Out Luceeinayat Chevy 350 with a th350 transmission. Web Diagram Th350 Cooler Lines In And Out Thread. Awasome Th400 Cooler Lines Diagram References. Th350 Oil Flow Diagram Quick Turbo 350 question on cooling lines Page1 Chevy. Just in case anyone else ever needs the same info and does a search on here the fitting size is 1/2" x 20 inverted flare fitting (brake system fitting). Shop Now at the Guaranteed Lowest Price!. 1964-1977 Chevy El Camino Transmission Cooler Hose Kit. We have a great online selection at the lowest prices with Fast & Free shipping on many items!. I know I am over thinking this and these. Chevrolet Customer Service: 1-800-222-1020. If you haven't. Color Wiring Diagrams; Keyed Alike Lock Sets; Electronic Tachometer Conversion; C1 Shop & Service Manuals;. folkenheath Volcano Manifolds. Running Transmission Cooling Lines for the TH350. That's actually incorrect i believe. If you try to run a rubber hose the full length the hose will eventually get soft and suck together which will not allow vacuum to get to the transmission. Stage 1 TH350 is reliable to over 500 HP/TQ. Rear. Add to Cart. May 13th, 2018 - Which line is the outgoing line to the tranny cooler on a TH350 T 350 cooler lines Fitting Location Thread Size Flow Direction TH 350 cooler line oil flow Hot Rod Forum Hotrodders. This is my first draft of a write-up of the process to convert a TH350 3-speed auto LATE 2nd gen Camaro to a 2004R 4-speed Overdrive tranny. Honda 2, 3 & 4 Speed . Transmission Vacuum Line, Steel, Pontiac, TH400, Each. Fluid Cooler Lines (229) Air Conditioning Hoses and Lines (181) Oil Cooler Lines (121) Brake Hoses, Sets (50) Hose Kits, Cooling System (34). kaiserbud, If the transmission cooler is in the side tank of the radiator, the fluid should go into the cooler at the bottom and out at the top, and then back to the upper fitting on the transmission. The OEM tranny case fitting is made to work w/an inverted flare fitting on the cooler line, using a formed flare on the tubing. Reply Quote. The way @baldilocks explains it the cooling goes: Hot oil from the transmission to the passenger side bottom radiator. From what I read the hottest oil (from the converter) goes to the cooler. The lower line from the TH350, 400, or powerglide tranny is out. TH350 trans to radiator cooling lines questions The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Register or Log In To remove these advertisements. The Top line is Return/In, it doesn't have suction so some fluid may flow out there. The lower line from the TH350, 400, or powerglide tranny is out. General Motors. TH350/TH350C . 6204 posts · Joined 2007. 4l60e transmission cooler lines diagram. THM cooler line ports. The below transmission cooler installation diagram shows the transmission fluid flow direction and how the fluid will be routed through a new external cooler. Transmission Cooler Adapter Fittings. Part # B61240. Author. STEP 2 After placing the transmission in your work area, remove the torque converter unit. 1968-72 Trans Cooler Line with Turbo 350, Stainless Steel. 42s. skip to main content. Fitting Location Thread Size Flow Direction. Web if youre working on your chevy and need a transmission cooler lines diagram youre in luck. This is because the transmission lengths are the same and the positioning of the cross member can be easily modified, you only need to change the transmission mount, add transmission cooler lines, and update the shift indicator to a Turbo 350 pattern to complete the. org. #8, Cooler Feed (Fluid OUT to cooler) Top line at the transmission. We have 9 Images. Register or Log In To remove these advertisements. Th350 Transmission Parts Diagram 913 subscribers 6. tor and shifter cable. Sponsored. Horizontal case Fitting. Related Items. Part #: GCS-S5047 | Manufacturer Part #: GCS. start to finish, the writer demonstrates a wealth of knowledge about the subject matter. Fittings were used to adapt from the 1/2" Heater hose on the cooler to 3/8" lines to travel to the 7. ($30) Ebay: B&M Super Cooler tranny cooler ($40) Total parts cost= Approx. All weights are without converter and dry with stock components. Tags: Transmission Fluid Transmission Filter. Need to replace all my Transmission lines because the previous owner cut them and replaced with basic tubing. I ordered new parts from europarts-sd. Mechanics, Ag. I plan to go with hard lines and wondering the best routing configuration to keep it looking clean. There is a $4 “Box Fee” due to the special size box we have to purchase to ship these. Th cooling line diagram On my truck I am using rubber tranny cooler lines form the tranny all the way to the radiator. Automatic Transmission Cooler Lines 5 Foot Length Flexible Braided Stainless Steel Black. SKU # 836323. Quick view. TH350 Cooler Line Size. Th350 powerglide trifive Turbo 350 vacuum line hook up Transmission th350 lockup hydramatic Th350 vacuum line diagram. 67 Chevelle Malibu SS Cdn. I have seen it numerous times both on the track and the street. The Turbo 350 soon established a reputation for being strong, versatile, and compact. Buy 1968-1982 Corvette Transmission Cooler & Lines online at Zip. Transmission Coolers. #4 · Mar 16, 2008. Model. 1965-79 Pontiac V8 TH400 Flex Plate $25. The transmission cooling line system is vital to any automatic transmission. There are in (inlet) and out (outlet) lines. This 26 4l60e Transmission Cooler Lines Diagram – Wiring Database has px x Lower line out of TH to the lower radiator trans cooler fitting. QTY RequiredSurface Studio vs iMac – Which Should You Pick? 5 Ways to Connect Wireless Headphones to TV. In order to remove any debris left in the system from the previous transmission, B&M recommends that you a) hot flush and flow check. 95: In Stock : Qty. Save Share. OE Steel. Its identification, for instance, helps you to This 26 4l60e Transmission Cooler Lines Diagram – Wiring Database has px x px resolution. More than 10 available. spare tire hardware, glove box, package tray, dash and door parts. If you have your heart set on a six-speed automatic to back your LS, consider TCI’s 6X transmission. Once all of the fasteners are installed, tighten the crossmember bolts first, and then tighten the bolts to the transmission rear. expert reply by: Jameson C. Th350 Transmission Valve Body Diagram. Vacuum 350 1978 diagram chevy hose line hook turbo lines transmission. Fits 1966–1967 Chevrolet Chevelle, 1966–1967 Chevrolet El Camino, , , , , , . Material: Stainless Steel. Fits 1970–1972 Chevrolet Monte Carlo, , , , , , , . identify the 4 mounting rods, 4 mounting clips and 4 1x1 foam pads. Transmission Cooler Lines, TH400. Once the trans is in place and the driveshaft is installed, there are still a few details to overcome. Correct for 1964-67. 14. This is the easiest method i have found. Great condition. 8 out of 5 stars 10 Diagram Th350 Cooler Lines In And Out Luceeinayat. Advance Adapter. Should be in the top, out the bottom, through your cooler then to your radiator. GMC Customer Service: 1-800-462-8782. I have pulled out the subframe and have a few pictures of the colling lines on my car. Restoparts Transmission Cooler Line Th350 400 1968 72 Cutlass Opgi ComTurbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. Lower ⅛" Pipe Cooler feed/out. Web so i'm working on swapping a th350 into my car,. Just pulled out my TH350 and that's the way it was. Free In-Store Pick Up. Trans Cooler Lines TH350 Engine & Drivetrain. Transmission Cooler Guides & Info. Make sure to adjust the TV cable with the video’s help. For those who are interested…. Top to top, bottom to bottom. Disconnect the transmission cooler lines from the transmission. Make. Note: This location is recom-mended to monitor the true transmission temperature going in, as well as checking the oil cooler efficiency. Get the vehicle up in the air with the use of either a jack and jack stands or ramps. 700r4 oil flow schematic wordpress com. Th350 Cooler Lines Diagram. Estimated Ship Date: Nov 27, 2023 if ordered today. 700r4 Cooling Lines Trans Cooler Team Chevelle View turbo 350 (th350) transmission cooler line diagrams and cooler flow path that route to the radiator and to an external transmission cooler. 99. NPT Threads on Case; Includes: Black Fittings; Stainless Steel Braided Hose; View Details. Vendor. $24. 4272 (502×700)350 transmission turbo diagram gm chevy th350 700r4 transmissions specs engine chart trans identify 350c rebuild identification parts type lookup. All Powerglide, TH350, TH400, 700R4, 4L60E, 4L65E, 4L80E, 4L85E, the bottom fitting is the pressure side, the top fitting is the return. 99Use 5/16 or 3/8 tubing. Part #: GCS-S5047. All Dash; Top of Dash Panels; Windshield Repair Panels; View All; Doors. Not too big because you will tear the line on the inside during install. Automatic Transmission Cooler Lines, 7 Ft. Register or Log In To remove these advertisements. The cooler core will flow in either direction, there is no specified inlet or outlet port. $37. Its identification, for instance, helps you to This 26 4l60e Transmission Cooler Lines Diagram – Wiring Database has px x px resolution. That's how I remember the Turbo 350 Trans lines. Dorman Transmission Oil Cooler. JEGS Automatic Transmission Cooler Line Kit for GM TH350/TH400/700R4. The website continuously mentions the Dodge parts diagram, but i cant seem to find it. If you remove a line from the radiator and fluid can be pumped into a bucket from the line, that is the inlet line to the radiator (the hot trans fluid). 95. 2017: 1970 315hp/410ftlb Buick 350 Code SP Stock w/ 800cfm Qjet and Crower Level 3 cam (rip) and TH350 #2 (rip). Weve got a great one right here that will help you get the job done quickly and. ** Means extra charge will be $50. The TH350 takes about 4 quarts in the pan, and then requires additional based on the torque converter being used. brass adapters that were used with the fac. 99Come out of the radiator cooler and around to the "input" line of the external transmission cooler. If you're running an external cooler: tranny bottom to radiator top, radiator bottom to cooler top, cooler bottom to tranny top. AAMCO | 07/26/2019. The top line exiting the rad should be routed to the bottom line of the external cooler, read it stops (aeration), then route the coolers top return line back to the trans top inlet. Pan, Replace Transmission, Flush Cooler/Cooler Lines, Includes Time To Remove And Install Transmission And Post Road Test (Do Not Use With Any Other Labor Operations Except C When Required) 3. A worn or seal and lead to. Worth repeating: Modulator O-ring. Find Parts and Accessories th350 transmission cooler KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get 15% back - Get Details!. Web Lower line out of TH350 to the lower radiator trans cooler fitting. Thoughts, suggestions? Turbo 350 Transmission Cooler Line Diagram. the "top hat" did not fit properly, i had to shorten it. . 99; Special Order. Top = Return/Out to top Trans line. My '69 El Camino was built with a Powerglide, but the previous (or previous previous?) owner converted it to a TH350. npt threads on case includes: black fittings stainless steel braided hose see more product details ships on monday qty add to cart. For questions or to place an order by phone, please call our solutions desk at (888) 324-1617 8AM-6PM PST (West Coast USA). 4 Wheel Drive 8 Cylinder 67-72. th350 cooler line pressure the cooler line pressure on a th350 transmission is typically set between 40 and 50 psi. 5 converter, the overall requirement is around 10. Web seems the factory used the bottom on the rad for hot out from the trans, and the top. com. Wiring Diagrams. The adapter material is 356 T-6 heat treated aluminum alloy and the adapter has a provision for a transmission. ) The cooler comes standard with a fan for great cooling ability even at low speeds and in remote mounted areas. These transmissions mate a three-element turbine torque. JEGS 113601K The transmission cooling line system is vital to any automatic transmission. GMOTM Winner. Wish List. Contact us for advertising partnerships and become collaborator: [email protected]Wiring Diagrams. the "top hat" did not fit properly, i had to shorten it and it still leaked. Engine Oil Transmission Oil Cooler Lines Plews amp Edelmann. Use the adjusters on the transmission jack to keep the transmission well aligned with the engine. View Turbo 350 (TH350) transmission cooler line diagrams and cooler flow path that route to the radiator and to an external transmission cooler. Part Number: SUM-230321 4. Compare. 2. This line runs to the lower rad fitting. My sump temps when the output monitor is showing 220 is 170. jeepers creepers. 1967-1968 Nova Transmission Vacuum Line, TH350, Left Side Modulator, Original Material. If you are searching about Turbo 350 vacuum line hook up help wiring lockup on th350c. 4sp w/GV, AC,PS,3. i dont believe in cross threading stuff, but some people do, save enough to replace the cracked trans case. 3/8 6AN 20FT, Nylon Stainless Steel Braided Fuel Line Oil/Gas/Fuel Hose End Fitting Hose with 10PCS Swivel Fitting Adapter Kit - Black. 562-inches and a height from 3. 2 Line set with 1/2" fitting at radiator. The T-350 cooler line pressure runs 20 - 60 psi on a stock configured T-350. See more product details. So there's a bonafide reference to back up what the other guys have already told you. It is best to use a metal line for all but the connections at the modulator valve and if necessary at the intake manifold. . Hello, I am having a word association problem regarding the trans cooler lines on my 283 turbo 350 stock radiator. if you haven't started using nicop over steel, you are missing. is there any definate answer, if is is the upper or lower is the return line, it is critical for me to now, because i need to put a one-way valve in the return line,since the check-valve in the pump quit working . Source: schematron. "A" Fits Suburbans with small block and 4 bbl carburetor. I just had my TH350 rebuilt and was told the feed goes to the top of the radiator and the return goes to the bottom. I really need to monitor trans oil temperature in some races and i would like to fit a sensor (the best would be 1/8 NPT thread) somewhere into the transmission or at the beginning of the oil line to the cooler. At the right rear of the case is the modulator. (I live close so I can drop by). Common as dirt on TH 350. The Novak Guide to the GM TH350 Automatic Transmission. Product Details. 78 Malibu Classic factory 4 speed. NPSM or 1/4 in. Off-road applications receive an 18 month/100,000 mile parts and labor warranty. 4 Wheel Drive 8 Cylinder 67-72: 1: $79. I removed & eliminated the hard lines (they broke), instead of putting new hard lines back (PTA) 😂. These have a straight thread and seal on the gasket. 99. Diagram Th350 Cooler Lines In And Out diagram-th350-cooler-lines-in-and-out 2 Downloaded from staging. Upper ¼" Pipe Return/in. 454, TH400, NP205, 6" Susp Lift,. The 200-4R is a 4-speed automatic overdrive transmission by GM, capable of fitting into most Chevy’s from the 80s and before, built similarly to the TH200 and TH350, as well as the 2-speed Powerglide. Free Same Day Store Pickup.