T176 rebuild help needed asap!

[raser13]

Hey guys and gals, i have the T-176 tranny out of my CJ5 for a rebuild. This is my first tranny rebuild. I've got it almost done and I've hit a really cruddy snag. I can't get the input shaft back in!

I've got the mainshaft with all the gears in the tranny. And i just can't get the input shaft to get back past the lower gear right by the opening. I've also tryed putting the input shaft in first then the maonshaft and gears. But the front of the mainshaft is just a bit to long to sneak past the input shaft.

What am i doing wrong?? What's the trick that I'm missing??? I need this back up and running. This is my DD. I'm barrowing a car till i can get it running. I NEED HELP!!!!!!

 

[raser13]

Nobody???

 

[Hedgehog]

Don't know about the 176 directly, but since you are getting such underwhelming responses to your question I'll try.

Look at the gear at the end of the input shaft. Is it interrupted or has a section where it is designed to have no teeth? If that is the case look at the corresponding gear in the Transmission case. Turn the gear and I believe you will find a section of that gear that also does not have any teeth. Make sure the areas with no teeth are lined up when you are installing the shaft. Also put just enough grease inside the bearing cup to hold the bearings in place. Extra grease might displace the (loose) bearings when the shaft is put in place. Other than that I can't help you much.

 

[mriplaybass]

I too am not familiar with the T-176 , but I will offer some generic advice. I believe that your main shaft bearings are held in with large snap rings just like a T-18 is. The last T-18 that I rebuilt had the same problem that you are having. I could not get the main shaft quite all the way in. What I discovered was that the new snap rings were just a little bit thicker than the old ones. This pushed the rear bearing in just enough to not allow the shaft to fully insert. They would go into the groove, but I could not get the main shaft all the way in. I dug through the old parts and located the old snap ring. Cleaned it up and reinstalled it. Problem solved! Also, check the thrust washers on your reverse idler gear to make sure that the flat spots are facing the main shaft. Not sure if this affects the main shaft installation, but they do have to be in correctly.

 

[Lumpy Grits]

I'd give these guys a call-
Novak Conversions Home

Ck this out-
T176 Disassembly and Rebuild Pic Heavy - International Full Size Jeep Association

Exploded view-
Tremec T176 & T177 Transmission Parts at Morris4x4

Good luck!
LG

 

[raser13]

The input shaft gear synchronizer ( for forth gear) has a section with missing teeth as described. But i don't see any corospoding ones on the reverse gear set. And when i align the missing spot with the big gear up front it is sooooo close but just won't go past. I'll look closer tomarrow and see if maybe there's a tooth or two that's got the edge shaved down just enough to let it through. I'll let you know. Thanks for all the input guys. This has really been driving me nuts. If i get this done it will take maybe a half hour to finish the tranny. Instead it's going to be day three tomorrow, instead of a one day project.

 

[1986cj7]

I know this is an old thread but I just got done rebuilding my T-176 in order to get the input shaft in you have to leave the cluster gear shaft out of case don't seat the shaft all the way into case on the input shaft side leave the shaft in enough to hold needle bearing in this will give you room to clear the cluster gear it doesn't take much. I replied to this old post in case in the future someone else searches for this info.