Assistance in Switching to 4.10 FRPP gears

[rrohrig]

I was wondering if I could get any pointers on how to change the gears in my 98 Cobra to the FRPP 4.10s? I once heard that when switching them I would not have to swap out and mess with the shim, but to use the existing one. My father will be doing the install, as he has done these before and built several 1930s street rods. He is just unfamiliar with the Cobra. He just would like some reassurance that this process will not blow up in our face, i.e. his 66 Chevy II nova required several changes that took a lot of time and money. Any help would be appreciated. Thanks. Ryan

 

[mustangkid05]

ryan do a search and type in gear installation or just gears

 

[four six]

The install is fairly straight foward, just needs to be exact or it will wine it its not perfect. good luck bro

 

[Mike97gt]

you should measure the pinion depth, but you can try and get away with using the old shims, just run a pattern on it and see how it looks when you are done.

 

[MBDiagMan]

Using FRPP gears and using the original shims in the original locations will PROBABLY set it up right, but don't even DREAM of putting it back together without not only checking the pattern as mentioned above, but it is equally important that you check the backlash.

Backlash and pattern should be checked and properly adjusted ANY TIME that the carrier is removed for any reason.