Hello, I am new to this site and figured I would say hello. I already have a question regarding the transmission in the SS. Where is a good place to go to purchase rebuild parts? I am having trouble finding parts on the internet, do I have to go directly to a chevy dealer?

 

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M35 TRANSMISSION REPAIR PARTS
This is what you need to buy to do a differential exchange or synchro replacement ( part numbers for the synchros and lsd etc are not supplied here, just the parts you have to buy if you take it apart and put it back together:
spacer kit this is a collapsible spacer: 55352125 for the main shaft, )if changing or installing an lsd, you will need two differential case bearings: 12788353,) and 5th gear nut 12755195 The reason you need the collapsible spacer is that is a torque to yield spacer that determines main shaft end float and if you reuse the old one the end float will be too much and the synchro's will clash etc. The reason you need differential bearings is that you cannot easily remove the old ones from the old diff without damage, to reinstall in the new differential. The nut should be changed as it is peened to prevent getting loose, and the gasket 90486235 generally gets damaged when you remove the end case