LS1TECH - Camaro and Firebird Forum Discussion

LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)

- Gears & Axles (https://ls1tech.com/forums/gears-axles-15/)

- - 3.90's (https://ls1tech.com/forums/gears-axles/249880-3-90s.html)

Vertigo

Dec 14, 2004 09:52 PM

3.90's

Anyone know where to get some 3.90's for a 10bolt?? THX

Z95m6

Dec 14, 2004 11:36 PM

as far as i know no one makes them. You have to get an aftermarket rear. I'm running an 8.8 thats why i have 3.90's. If i could do it over again i probably would of gotten 4.10's though.

Vertigo

Dec 15, 2004 09:31 AM

reallly why do you say that? The only reason i was going with 3.90 was for the better pinion angle = more strength... but i've been reading a bunch on 4.10 and the stock 10bolt and from the sounds of it as long as you don't rev and dump the clutch you should be fine...i guess im going 4.10's !!

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