T176 Transmission

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  • The Tremec T176 transmission was a four-speed transmission found in 1980 to 1986 Jeep CJ models usually with the 4.2L 258 I6.
  • Fits: 1980-1983 Jeep CJ5 w/ T176, T177 Transmissions 1980-1986 Jeep CJ7 w/ T176, T177 Transmissions 1981-1986 Jeep CJ8 w/ T176, T177 Transmissions.

T176 Transmission Diagram

The T176 (and T177 / T178) is native to 1980 - 1986 Jeeps as the medium duty upgrade. Compatibility with AMC I4 & I6 engines, and adaptability to GM and Ford engines; Aluminum case and top cover. Close-ratio first gear with direct-drive in fourth gear; Stronger than the base-option transmissions during this era; Compatible with the.


Manic Mechanic

Active member

T176 Transmission Shift Pattern

85 CJ7 4.2L 258 .040 over, T-5 trans, dana 300, dana 30 front 3.23 and lock right locker, rear amc 20 3.23 one piece axle shafts traclock
79 CJ7 304, th400 auto borgwarner 1389?? qudratrac stock rest unknown.
89 YJ 4.2L 258, AX-15 5spd, NP231, dana 30 front, dana 35 rear with posi, gears unknown
92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear.
i need some help getting a T-176 trans into neutral as i am out of my element as i dont do trany work other then removing and reinstalling them.
so long story short i had to pull the engine and trany on a POS 5 due the engine being locked up. in the process i had to remove the top cover on the 176 as the shifter itself wouldnt come out due to some modification the PO had done. once i got the new motor in and the trany reconnected i attempted to shift gears to make sure everything was working correctly before firing up the new motor. however the dang thing wont shift. after removing the top cover again i find that i can only turn the trans with the clutch depressed otherwise its locked up tight. i figure its in 2 gears at once hence why it only moves while the clutch is depressed.
what i need to do is figure out how or rather where to place the shift collars and reverse gear so that everything is in neutral so that when i replace the top cover it will line up with the forks. i will post pics tomorrow afternoon when i get back to the garage so that you can see where the collars are located tell me up down left right ur screwed give up etc ( just kidding i know u wont say that)

T176 Transmission Rebuild Kit

Hey guys,
Let me start by saying that I am new to jeep so please forgive the newbie questions.
I was wondering how to indentify the transmission in my jeep? I understand in 83 there were 3 different options? Could be wrong on that. Just looking for some basics on what to look at, or dimmensions, or maybe markings in the case? Just so I know what to shop around for. Also on the same note, would now be a good time to upgrade? I would rather get the rig on the road for now and spend my money on the body work and then focus on the drivetrain.
Thanks for all your help,