Just blew brand new diffs in one run...

[chrisexv6]

You put a shim(s) OUTSIDE the bearing. Cram as many as you can and still have a tiny bit of backlash on the input pinion. Just like when you set your motor pinion mesh, you want just a tiny bit of play. The smallest amount you can get before there isn’t any play.

I was referring to this way of doing it, but the result is probably the same result both ways:

 

[jondilly1974]

I was referring to this way of doing it, but the result is probably the same result both ways:

Shimming the input gear takes a lot more effort as you have to remove the input cups to add shims, where shimming the output cups you can simply slide another shim over them.

 

[Surchaufeur]

Shimming the input gear takes a lot more effort as you have to remove the input cups to add shims, where shimming the output cups you can simply slide another shim over them.

Only true when the diff outdrives are new once they are worn out you will need to destroy the shims to remove them. Using larger shims from the 3-4s diff for the crown gear no more bending those tiny shims while putting the diff case cover back on . You will have to dissasemble the diff no matter what

 

[jondilly1974]

Only true when the diff outdrives are new once they are worn out you will need to destroy the shims to remove them. Using larger shims from the 3-4s diff for the crown gear no more bending those tiny shims while putting the diff case cover back on

Ive found the outdrives are easy to bend back into shape when they flare out. ??‍

 

[Surchaufeur]

Ive found the outdrives are easy to bend back into shape when they flare out. ??‍

How? With an hammer?

 

[jondilly1974]

How? With an hammer?

Nah channel locks. Just give them a squeeze.

 

[chrisexv6]

They don't seem to be available right now but I picked up a set of the M2C outdrive cups a couple months ago.

Not sure why they arent on the site anymore, regret not picking up a bunch of sets just to have them.

 

[Gibber]

This hobby is a money pit, but its so fun

So very true.