Honda D Series Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
233 Posts
Discussion Starter #1
Heres my dilema, Ive got 4 89-91 si trannys laying on my garage floor. Now one of the them has good gears/synchros and a busted differential. Another one has bad gears and a good differential. Basically I want to make one working tranny out of two of em. Now, I dont have a clue in hell how to even begin taking this apart and there isnt a tranny shop within 70 miles of me that will touch for less than $300.

Sooo, which one of you esteemed tranny guru's feels like helpin a brother out or maybe suggesting a more rational price cuz I dont see how this could be hard except I dont know anything about how these go together.
 

·
Registered
Joined
·
233 Posts
Discussion Starter #3
im near kansas city missouri. 64093 to be exact. unfortunately, it doesnt as simple as those 4 words make it. i have the helms manual but i really just dont know where to start.
 

·
Registered
Joined
·
465 Posts
It really shouldn't be that hard, especially if you have the service manual. Take the cases apart per the instructions, once inside the 2 shafts lift out together so that is pretty easy. Then simply remove the diff, put it in the other tranny that you have taken apart the same way and follow the instructions in the service manual for the clearance on the diff bearings. Once that is done, put the 2 shafts back in simultaneously and finish reassembly. Again, this is pretty simplified but if you just follow the instructions it should be rather simple, you don't need a lot of special tools either: some sockets, snap ring pliers, some allen wrenches and feeler gauges should pretty much cover it. And don't forget the sealant!
 

·
Registered
Joined
·
465 Posts
If you are planning on paying $300 for someone else to do it, then you might as well just buy a rebuilt tranny from Bone and sell some of yours.
 

·
Registered
Joined
·
428 Posts
you have two busted trannies sitting there, if you fuck them up you still have two busted trannies, and if you get in over your head they can still put it back together for that 300 if you have the parts, might as well learn something
 

·
Registered
Joined
·
233 Posts
Discussion Starter #11
soo ive been lookin at these two trannies and it seems like as long as im careful enough to keep the mainshaft gears all in one assembly and dont take the lock nut off the other set of gears then ill be fine right? basically i just pull out the busted diff and drop in the new one correct?

After doing some reading of the helms and looking at the tranny itself, it doesnt really look all that difficult.

Now once I get this all back together how can I be sure its going to work, how do I test the gears to see if they are going to engage properly?

I really appreciate the positive input Ive gotten on this subject you guys kick ass!!!
 

·
Registered
Joined
·
428 Posts
the input shaft will be able to turn when its together, i just got done putting mine togehter and it wont turn, i have to go back and replace a shim with a smaller one, just have to find out which one!
 
1 - 13 of 13 Posts
Top