th400

  1. 1979 Jeep CJ7 Project

    1979 Jeep CJ7 Project

    I'm selling my Jeep CJ7 Project. It is a 1979. It will need mostly body work to finish. The 1st picture is what it looks like now. Here is the Craig's List ad to read: https://sanantonio.craigslist.org/cto/d/boerne-1979-jeep-cj7-project/7365415745.html You can email me questions at...
  2. Peanut Butter

    Trans TH400 Help

    I finally got the shop put back together. I started rebuilding one of my TH400 transmissions. This is the AMC case version. On the valve body, one of the valves is not functioning properly. I noticed that the spring may be broken. Problem is there is no way to remove the pin holding it in...
  3. Peanut Butter

    TH400 Technical Information

    This Jeep TH400 Technical Information thread is based on information that I have gathered after discovering that my own TH400 was not a Chevy housing but a BOP Housing from a Cadillac. The Turbo Hydromatic 400 automatic transmission was found in Jeep CJs from 1976 to 1979. It was only in the...
  4. Petescj

    Th400 no 3rd gear

    Beyond low or burnt fluid is there anything else I can check for ( without dropping the transmission) that would keep the TH 400 from shifting into 3rd gear? I know there's vacuum lines and I believe a module of some sort. The front axle had lock out hubs installed but I don't know if there was...
  5. Petescj

    Th400 no 3rd gear

  6. D

    CJ5 with a TH400 trans.

    I just got a CJ 5 project Jeep the other day and one of the bigger problems is someone along the way has converted the CJ from manual to auto transmission. After doing a little research I found that the TH400 is not what you want due to length. The drive shaft angle is extreme and probably cause...
  7. D

    CJ5 with a TH400 trans.

  8. D

    CJ5 with a TH400 trans.

    I've been out of the 4x4 Jeep since the 1990s I had a CJ 6 that I enjoyed alot but had to sale due to money issues. So I started looking and found a nice looking CJ 5 that was a project Jeep. The guy that had it said he had it 8 years and had it running a couple of times but could only get it...
  9. D

    CJ5 with a TH400 trans.

  10. G

    TH400 won't upshift to 3rd

    Hey guys, new to this forum and to CJs. I've been looking for a project and have recently got a '76 CJ-7 with the 304 and TH400. My problem is that it won't shift into third gear. I haven't had a 3 spd vehicle and don't really know at what speed to expect it to shift. I've done some reading...
  11. G

    TH400 won't upshift to 3rd

  12. F

    Quadratrac

    I have a 1976 Quadratrac question if anyone has knowledge. 1. where was the vac hose route to? manifold? carb? and where at exactly? When I purchased the CJ it was not connected. 2. I have the mile marker kit that a PO installed, I know nothing about this kit and there are very few instructions...
  13. F

    Quadratrac

    I have a 1976 Quadratrac question if anyone has knowledge. 1. where was the vac hose route to? manifold? carb? and where at exactly? When I purchased the CJ it was not connected. 2. I have the mile marker kit that a PO installed, I know nothing about this kit and there are very few instructions...
  14. B

    keep t150 for 258 or th400

    anyone own a 258 with a th400? I am contemplating to install my th400 in place of my t150 but I dont want to swap and be disappointed! any suggestions? thanks
  15. B

    keep t150 for 258 or th400

    anyone own a 258 with a th400? I am contemplating to install my th400 in place of my t150 but I dont want to swap and be disappointed! any suggestions? thanks
  16. B

    Np435 Dana 20 or TH400 Dana 300

    I bought an 82 cj7 with a swapped 360, trashed SR4 (no surprise), Dana 300. I need to upgrade the trans. I will mostly be driving on roads, but it will get an occasional beating. I know I would prefer the auto option, but right now cost is my main concern. I have access to an AMC TH400 and an...
  17. B

    Np435 Dana 20 or TH400 Dana 300

    I bought an 82 cj7 with a swapped 360, trashed SR4 (no surprise), Dana 300. I need to upgrade the trans. I will mostly be driving on roads, but it will get an occasional beating. I know I would prefer the auto option, but right now cost is my main concern. I have access to an AMC TH400 and an...
  18. Peanut Butter

    Jeep TH400 Technical Information

    This Jeep TH400 Technical Information thread is based on information that I have gathered after discovering that my own TH400 :confused: was not a Chevy housing but a BOP Housing from a Cadillac. The Turbo Hydromatic 400 automatic transmission was found in Jeep CJs from 1976 to 1979. It was...
  19. Peanut Butter

    Jeep TH400 Technical Information

    This Jeep TH400 Technical Information thread is based on information that I have gathered after discovering that my own TH400 :confused: was not a Chevy housing but a BOP Housing from a Cadillac. The Turbo Hydromatic 400 automatic transmission was found in Jeep CJs from 1976 to 1979. It was...
  20. Peanut Butter

    Th400 ?

    I have a 1979 CJ7 I6 with a TH400. On the right side near the top of the case is a small tube that looks like wire insulation without the wire. Is this a vent? If not what is it? Any suggestions on how to improve it to keep water out? Thanks, Rod
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