Mustang T56 Guys..... What rear gears are you running?
 

I'm getting ready to build my 8.8 and not sure what gears I want. I'm thinking 4.30s? What's everyone else run? Looking for something for a occasional strip car.

You're high. If only an occasional strip car, 4.30 is no good. Final depends on tire diameter. If your tires are in the 27" + range, I'd say 3.90's max. If tires are in the 26.5 - range, I'd say a 4.10's max.

Not a Mustang spec T56, but, in my Viper spec T56 & 26" tires, I use 3.90's & it's just about perfect from great 0-whatever acceleration through low highway RPM @ 65 + MPH..

I had 3:90's in a 440rwhp car with T56 and it was great. (not an 8.8" diff)

Get some 3.73's or 4.10 gears from FRPP (Ford). They are the quietest. Richmond gears whine.

Back up the bus, what is your engine combo? What are your intentions for the car? Is it near stock weight, what tires are you running?

I have 4.10s and a 28 inch tall tire. I am stepping down to a 26 inch tire so i can actually use the 4.10s.

4.8 with about 350 hp at the crank, for now. Little lighter then stock. LX w/ power windows.

I've got 373s. Stick with them for now?

Yea 3.73s should be perfectly fine.

Tires are 335/30-18s

I would stick with the 3.73s, the 4.8s like rpm, your car is fairly light. If you had a 6.0, I would say 3.55 or even 3.27 only because of the torque difference. Also, this is for a car that actually gets driven around and not a track star.

Run the 3.73, you could change it later.

Those are around 26". As noted earlier, 4.10's or maybe 3.90's.

373s it is then. Thanks guys. Ill post my results.

I had a buddy put richmond 4.88's in his stang with his viper spec t-56 and it was the dumbest thing he's ever done. Zero traction and horrible gas mileage. Feels way faster than it really is too.

I've got 3.73's in my 94GT with a 393W and a T56 in it. It runs about 1900 rpms @ 75 mph in 6th gear.