If your diff still had the tag on it, it will say right in the tag what gears you have! Mine says 3L27 which is a locking 3.27
1994 Mustang GT
Bought for $2200,Had 97K miles,New fuel tank,New driver front hub,New pass ball joint,New alt, New battery,New fog lights,New plastic bezel shifter,Fixed check engine light,New tires,Coolant flush,Magnaflow exhaust. Its starting to come together towards stock THEN I will make it go FAST!