[natestang22]

I was thinking of getting an SCT superchip and for them to tune it i need to tell them my Rear Gear Ratio, how do i find this out.

I have an 01 V6 mustang with dual exhaust and a cold air intake by the way.

[shinerstang]

You have 3:27's......

[yorgie]

Unless somebody's been in there and taken your rear-end down (apart and replaced, changed or whatever), there's a tag [usually aluminum] on the pumpkin cover, held by one of the the bolts that holds the cover on, with the rear-ends ratio stamped in it. Crawl under there with a good flashlight and read it!