pops out of third gear?????

[Big Blue J-10]

It fine while acelerating and while you keep the gas very steady,but if you let of the gas it pops out,you can hold it in but you feel it kick against your hand.I am not shure what kind of tranny I have,it a 4 speed and first gear is not a granny gear.

Adam :confused: :confused: :confused:

[badaboom]

Big Blue J-10
If it is a manual transmission it is probably a T-176 transmission.
I HAVE HAD THE SAME ISSUE FOR ABOUT 2 YEARS.
EVEN AFTER HAVING THE TRANSMISSION PULLED OUT AND TAKEN TO A SO CALLED REPUTABLE TRANSMISSION REPAIR SHOP AND RETURNED AND INSTALLED ONLY TO HAVE THE SAME PROBLEM.
Dont use Harrys Transmission in Denver CO!!! :mad:

Let me know if you get it resolved and how it was resolved when you get this accomplished.

What I really hate is a transmission shop that doesn't back there work. Most or alot of transmission shops will only accept the transmission out of the vehicle/ready for the bench.
But if you get the transmission back and it still has a problem they still want you to re-pull the transmission to resolve there poor work.
I believe a company that stands behind there work should just request the vehicle and they should remove the transmission and resolve the issue and re-install since they didn't get it right the first time.
I had a one year warranty but I did not have the time available to remove the transmission the second time and could ill afford the downtime.
I have been living with the issue.

What I can tell you, what I have been told/heard.
1. Shifting fork top cap problem.
2. 3rd gear sycro problem

A good transmission shop should be able to take care of that HUH?

I have found that some shops just will not work on my T-176 manual transmission.
example: Drivetrain Industries in Commerce City CO. The place is a authorized DANA repair shop but they would not touch it. :mad:
My one question is.
WHERE IS A REPUTABLE EXCELLENT TRANSMISSION SHOP THAT WILL WORK ON THE T-176 transmission in CO or otherwise and will stand behind there work?

Good Luck

[ October 16, 2003, 12:39 PM: Message edited by: badaboom ]

[Big Blue J-10]

Thanks Badaboom.It is a manual trans 4 speed.It has had this problem eversince I got it and it only does it in third gear.
Someone told me it might be a syncro.Where and what the hell is a syncro???Is it hard to replace????????

Adam

[badaboom]

Big Blue J-10,

I tried to wrap up the saga on your issue in 25 lines or less it is difficult.
Yes mine 2 only third gear always under deceleration and intermittently pops out of gear.
OTHERWISE SHIFTS AND FUNCTIONS GREAT
Just keep your hand on the shifter and it usually will not pop out of gear. (Not preferable but works for me).
I have had my J10 since 1988.
The problem croped up around 2000-01.
Been living with it.
I wish I could answer your questions.

But as I stated
What I can tell you, what I have been told/heard.
1. Shifting fork top cap problem.
2. 3rd gear syncro problem
ALSO number 3.
Wornout motor mounts and or transmission mount.
I can tell you I have not replaced my motor mounts and maybe have original items.
I have added the stablizer arm and bushings to the transmission mount..but did not resolve the problem.

I believe you will need to pull the transmission to fix the syncro if that is the problem.

1. If possible pull top transmisson cover off and inspect..especially the top cover and shifting forks or take to shop. Find a shop that is willing to spend just a bit of time to diagnose the problem.(reputable and knows there butt from a hole in the ground and will back there work as I explained in my earlier reply).
Pull the top cover from in the cab off the transmission and check/inspect the shifting forks etc. to see if issue is recognizable.
If the problem is not recognized and believed to be a sycro problem the transmisson will most definitely need to be removed to fix a syncro.

oh also I am not a transmission expert.
I am a graduate of the school of hard knocks.
Good luck
I would surely look forward to what can resolve this issue.

[tgreese]

There's an article on the Novak web site about the T-90 and what contributes to its popping out of 2nd gear (it's a 3 speed). I know it's not a T-176, but in principle the same types of wear could happen on the T-176 and cause it to jump out of third.

Take a look - Novak T-90 rebuilding article (http://www.novak-adapt.com/knowledge/t90_rebuild.htm)

[ October 16, 2003, 02:18 PM: Message edited by: tgreese ]

[badaboom]

Found some other possible helpful sites on the
T-176 AKA: Tremec T-176 Transmission

http://www.thejeep.com/onlinecatalog/p136.htm

http://www.tremectransmissions.com

[Big Blue J-10]

Thanks for all the links!

Adam

[tgreese]

Originally posted by Big Blue J-10:
Someone told me it might be a syncro.Where and what the hell is a syncro???Is it hard to replace????????The synchromeshes are clutches that match speeds between gears when you shift. This prevents gear clash or "grinding."

The assembly consists of a sleeve, hub and blocking ring. The consumable part (ie the part that's supposed to absorb normal wear) is the blocking ring aka synchro ring. It's an aluminum or brass ring that fits over a cone on the end of the gear. When you shift, the clutch sleeve (see the T-90 picture) slides over the clutch hub onto the end of the gear, pushed along by the shift fork. The clutch hub pushes against the blocking ring. The friction between the hub, blocking ring, and gear end matches the speeds of the hub and the gear.

Replacement of any of these parts requires disassembly of the transmission. The blocking rings can be replaced without a lot of hassle once you get the trans apart. On the Borg-Warner transmissions you can often "rebuild" the transmission with just seals, gaskets, a small parts kit (needle bearings and thrust washers) and blocking rings. A more complete rebuild would generally include front and rear bearings.

If you need to replace gears, it can get more complicated. You have to get the end play right or the synchros won't work. Method of adjustment depends on the trans design.

hth :cool: Tim

[ October 18, 2003, 02:52 PM: Message edited by: tgreese ]

[Stuka]

Yeah your syncros are shot. The T176 tranny isnt great.. The 258 in my J10 is making a meal out of the T176 in my J10. Your V8 will eat it up that much faster. You can either rebuild yours, or move to a heavy duty tranny (T176 is medium duty)

[brielly]

My t176 was shot when I bought my jeep. I couldn't downshift from 3rd to 2nd. I needed new 2nd and 3rd gear, syncros and a shift fork. I took it to cottman transmission and they did a great job on it. They actually wound up putting it in and taking it out three times before they were convinced they had it right(previous owner really screwed it up). Its been running great since and they back their work. The t176 is an ok tranny as long as your not wheeling hard on it.

[Big Blue J-10]

So what would be a good manual tranny to upgrade to if I decide to go that route????

Adam

[Big Blue J-10]

Are there any good 5speeds out there????

Adam

[TexasJ10]

t18a, 4 speed, granny 1st, with bellhousing, spacer and long input shaft for a AMC 360. It was used in j20's and some others.

[ October 19, 2003, 12:44 PM: Message edited by: TexasJ10 ]

[tgreese]

Ford T18 or T19A would probably be easiest. Same bellhousing pattern as the T176, but you'd need a xfer case adapter. T18 would probably be cheapest, and has a 6.32 non-synchro 1st gear. A T19A may be cheap too because it's a close-ratio trans (4.02 1st gear).

[Big Blue J-10]

Many thanks you guys!!!

Adam

[Stuka]

If you can find the rare T18a from an 80's J20 then you will be in luck, as it will bolt right in.