tylerl90

Who has 3.90's installed?

MUSTANGO2GT

THEY ARE AWSOME AND I LOVE MY 3.90 GEARS. I GOT MINE FROM PRO 5.0. THEY MAKE GREAT GEARS. NO WHINNING WHAT SO EVER

baino

motive makes some 3:90stoo. i went withtheir 4:10s though. just somethin to check into

Subotai_95

Steeda makes good ones too methinks.. I just ordered their 3.73's myself.. I know they make 3.90's and 4.10's too, not sure about 4.30's though.. The only bad thing about Steeda is they don't have much for the old fox's, most of their stuff is 89 and up.. Just my .02....

seegerson04

just bought an 04 gt with motive 3.90's already on it. cant really compare it to stock or any others but definatley no complaints. really happy with gears and the car in general

ALSANT99

put them in about three years ago,no problems and they are fun

bullitt15

3.90s are without a shadow of a doubt the best rear gear for our new edge 2 valve mustangs. 4th gear is still good to cruise in at 45mph. on the freeway 5th is strong. launching is easy.
and remember lowering your gear ratio does lower your 1/4 mile time but your mph goes down.
gas milage id have to say stayed the same. i got 28 mpg driving 70mph on i-75, but thats because of my headers.
cant wait for the snow to be gone and drive the bullitt!