LexCane55

Looking at cars. And i think i found the one I want but it doesn't have the 3.55 ratio limited slip axle that i see on a lot of manual mustangs. What is it?

Thanks

06GT4RAD

3.55 is the gear ratio of the rear differential ring and pinion. Limited Slip the unit inside the diff and is what makes both wheels turn at the same time. This is something you want.

Richard

acascianelli

2005-2006, Manual Mustangs came stock with the 3.55 rear end.
2007-2008, 3.55 rear end is optional, 3.31 is standard.

All S197 V6's come with a 3.31 non-limited slip rear end. All S197 automatic GT's come with a 3.31 with limited slip.

Both rear ends, on both automatic and manual Mustangs are limited slip. In fact I'm pretty sure all V8 Mustangs since the late 70's have had limited slip.

3.31 gearing is slightly better for mileage, 3.55 gears are slighly better for acceleration.

Orion_240

just walk to the rear of the car, drop down and peak at the back of the rear differential. The factory or any aftermarket mechanics should have the # written on a piece of paper attached to the back of it.
the 3.55 was a $100 upgrade but I think it's now (on 2008's) part of a more expensive option package.

acascianelli

I believe the 3.55 option costs $300 on 2008's. I guess I'm luck it only cost me $70 with Ford A-plan.

Sleeper05

For every 3.55 spins of the driveshaft, the wheels spin once.

A limited slip is designed to lock the rear axle and distribute power evenly between the left and right wheel under heavy loads.

2cokeman

Adds up to about 2/10th.s in the quarter[sm=icon_beat.gif]

LexCane55

its 300 bucks

Looks like i cant get this car then

Man its impossible to find a car with HIDs, GT Apparence, IUP and 3.55

xtremesaleen

if its a car you want as is then get 3.55's but if its a car you think youll want to mod then just get it with whatever gear and upgrade to 4.10's later