Just swapped a gsr 5th from a hydro trans into my cable YS1. Anyway when putting the case back together it goes fine with the snap ring in place but when we start to tighten the two halves together the input shaft seizes up tight. It moves freely even with the dowels mostly seated but when we tighten up the last 1/8th or so it ***** us over. Ideas?

 

reshim the mainshaft.

I'll bet you'll find the GSR 5th a little thicker than the YS1 5th.

You did measure them before swapping right?

What, you thought it was easy?

 

Shims are too high bone?

 

Why not just use the original shims and play with them to get it right. I've had to do that to save some $

 

I left the mainshaft shimmed as it was originally. I'll give this a shot and report back.

 

Okay, so brine04's transmission is in my basement. Seeings how he is a full time student, and I am a bum, I decided to pull it apart again and try Mista Bone's advice.

Here is where we are at. I pulled the main and counter, pulled the two shims that were under the main shaft out. Reassembled, forgot to put reverse back in, pulled back apart, put reverse in, put case halves back together, and they dropped right down no problem, and the transmission spins normally. Here is the problem: The counter shaft bearing that gets clipped in at the top won't reach the C clip even pressed right down, well let me be more specific it will get part way over enough to hold the c-clip apart but not enough to let it clip in. I have flipped the transmission upside down and shook it and tapped it with my soft faced dead blow, and it still wont work its way into the clip.

Now we had this problem before when the main shaft was shimmed to high, but when you would flip the transmission over it would clip in. Not anymore.

So here are my questions:

-Should I shim the counter shaft?
-Where and how (by how I mean what tool do I use, I.E. Is tape accurate enough or do i need calipers) do I measure to know if I need shims?
-I pulled out both shims from the main shaft, should I put one back in?

Sorry for all the questions, I do have a factory manual here (thanks to HMT), but i don't see any specs. Normally I would just use trial and error, but this isn't my transmission and I'm to lazy to work through all the options on someone else's transmission, when I'm just doing it to help out.

 

pics not loading

countershaft uses no shims.

Mainshaft only has one shim, you have yet to remove it. Likely what your playing with it the thrust washer (concave) and spacer washer.

Controlled drops onto a padded floor to get a stubborn CS to lock in.

pics still not loading

 

So if that is not the shim, where the ---- is this shim?

 

outer case half.......

it holds in the white plastic oil guide plate, you can also see the diff shim

 

I took and swapped the transmission case on an B000 pair of trannys and damn if the main shaft shim looked about the same size in each of them. It fit back together just fine, but I used just the case from the other tranny, no oil guide, shim or ball bearing. Didn't really touch the internals at all. Did I do right?



I only had to use a hammer and a block of wood to get the mentioned snap ring to go.