Question on Gears

[bigkmach]

I have a 04 mach 1 with stock 3.55 gears. I want to install a 4.10 gear. What else do i need to install when i get the new gear. Someone told me i need to get a chip. I that necessary?

 

[02LaserRed2V]

You'll need a chip only if your car is an automatic. If a 5-speed manual, then it's unnecessary. I'd recommend a speed cal, since it costs less than a chip.

 

[04DarkShadowGT]

You still need something to correct your speedo and miles regarless if its an automatic or manual.

You can get a speedcal from dallas mustang (manual only) or a programmer like a diablo, hypertech, etc or a custom chip.

 

[Cobra Jay]

Speedcal is the easiest, and cheapest way if you have a 5spd. If you have an auto, or you plan on getting a chip burned for a manual car, they can customize it for 4.10's.