2000 caprice diff

[DARK SIDE]

I need to have my diff rebuilt. What is a good gear ratio to rebuild it with? I want something good off the mark.

Cheers

[SAV_117]

youll lose top end speed man

[DARK SIDE]

I don’t mind, the diff is on its last legs anyway so I need to get it changed.

[johnvtls1]

go 3.9's. will get it off the line really well. apparently u can get 4.11's now without having to modify ur diff, so thats somthing to think about.

[vn calais manual]

its a caprice, its never gonna be that quick of the mark anyway go 3.7.

[johnvtls1]

its a caprice, its never gonna be that quick of the mark anyway go 3.7.

with a big stall, some 3.9's and exhaust+tune 12's are a walk in the park, so they can go pretty well with the right mods. thats a lot quicker then most lighter 5 liters

[walesy]

with a big stall, some 3.9's and exhaust+tune 12's are a walk in the park, so they can go pretty well with the right mods. thats a lot quicker then most lighter 5 liters

ya not wrong... im not far of a 12 without a stallie/shift kit or lower gears... im rebuilding my diff with 3.9's, got a 3200 stall on the way and a stage 2 shift kit...

[DARK SIDE]

I spoke to my mechanic today and he said he doesn’t think he can get a 3.9 but can get a 3.7. How much should it cost? I have been told about $650 + tax for the gears. And about $1200 to rebuild it and fit it. Is there much difference between the 3.9 and 3.7?

Cheers

[walesy]

yeah about 0.2 of a difference... sorry man couldnt help it.. i doubt you would notice a difference between the two... have a look on ebay sometimes you will find new gears fairly cheap

[DARK SIDE]

yea thats what I am doing, not much for sale at the moment though.

Cheers

[johnvtls1]

I spoke to my mechanic today and he said he doesn’t think he can get a 3.9 but can get a 3.7. How much should it cost? I have been told about $650 + tax for the gears. And about $1200 to rebuild it and fit it. Is there much difference between the 3.9 and 3.7?

Cheers

thats so much money for the gains u get. why not just find a second hand diff? for that money you could get a high stall in and the car will go weight better. i got my 3.7's for $350 from ls1 forum and got them installed for $250. really gotta shop around.

[Victimiza]

go a 3.7 max, 3.9 or 4.11 will murder your fuel economy (+ your in a stato), and you'll still have reasonable top end.

[DARK SIDE]

Cheers for your help guys. Alight I will try and find a second hand 3.7, sounds like it’s the way to go.

[DARK SIDE]

is 3.08:1 still a good ratio?