My neighbor has a bad transmission in his GSR. (1995, hydro) He picked up an SI tranny from a 99 SI, but the mount for the stabilizer bar is busted, as well as one of the top tranny mount posts.

The question: Can we swap the entire gear set from the SI tranny and put it into his good GSR housing?

Ive read some walk-through's/teardowns on rebuilding them both, and they look physically the same (in terms of where everything goes.) Just wanted to double check with some of you and see if it is what it seems, like an easy, do-able task.

Any help would be awesome, thanks in advance!

 

Yes. But you need to check the shims for the differential and mainshaft due to the differences in cases. They'll be close, but not perfect.

 

So if they arent, can it be worked around?

(btw, your thread on the GSR rebuild replacing the 3rd gear synchro is the one I go by, )

 

What do you mean "can it be worked around"?

To check the differential bearing clearancing requires a standard feeler gauge.

The mainshaft bearing clearance will require special Honda tools (mainshaft holder and mainshaft base) and a dial indicator w/ magnetic base which will be $150-$200 if you can't find these items to borrow.

Shims are around $8-$12 a piece.

 

i should of said that clearer, but what you responded with was pretty much what I was looking for (what needs to be done to make it happen)

so if they are close, but not perfect, Ill need to add some shims? and will need said tools to do so?

 

You may or may not need to replace the shims with new ones. Yours might be okay; but they may not, and that's why it's good to check.

Like I said, the differential shim can be checked very easily. Only install the differential in the case and remove the shim. Measure the total space available for the shim from trans case to diff bearing, and select a shim based on that distance to get you around .004" (+/- .002") depending on what you want.

The other one requires the two Honda special tools and a standard dial indicator to measure correctly. With the B-series for the mainshaft thrust clearance, they give you in the factory service manual a way to estimate what shim you'll need with a straight edge, feeler gauge, and depth gauge, but you can't double check the work without the special tools and dial indicator.

Good luck, sir.

 

Got it! Thank you very much sir!