Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

[cv6amaro]

im trying to make both tires spin instead of just one, would i need to change my 3.08 gears to 3.42 gears if i want to upgrade to the Zexel Torsen differential off a 98-02 Z28??

[truekoa]

Re: Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

Yes the Torsen unit in the Z28 rear end is a 3 series carrier, your 3.08 gearing is a 2 series carrier and will not work with the Torsen.

You can use any gears from 3.42 and lower( 3.73, 3.90, 4.10, etc ) will all work with a series 3 carrier.

[Fondle]

Re: Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

3.23 will also work, i have a set if you want them

[Skinny]

Re: Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

Torsen's are made for 2 series applications also. Two series carriers can be found in many V8 f-bodies, you just need to know what gear was in the rear end it came out of.

[Fondle]

Re: Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

you need to get a rear end from a automatic z28 for it to be series 2 im pretty sure

[Skinny]

Re: Do i need to change my 3.08 gears if i plan to upgrade to the Z28 differential?

Yes, the only factory 2 series carriers were in automatics, but not all of them. Check the gear to be sure.