[2fast4you]

i have a 1989 mustang with the t 5 manual but i wanna get it rebuld does the rear end has to match the gears in the trans
let me know thanks

[ttopstang]

no. you can get the trans rebuilt then decide what rear gears you want.

[2fast4you]

im sorry i should of added i already have a set or 3/7/3 rear end so what kinda kit should i get to rebuild my trans

[EagleAutosports]

You want the best one you can afford, with strength your #1 priority.

[rj8806]

Rebuilding the T5 does not mean you get a new(different) set of gear ratios in the tranny. In fact, changing the gear ratios in the tranny is not as easy as you might be thinking. It cost you big bucks as well.
As I specialize in TKO, T45 and T56 tranny's, the T5 is a little different. I can tell you that changing the ratios in a TKO requires a new input shaft, 1st gear, reverse gear, reverse idler and a new main shaft. The T5 isn't much different. When you change the 1st gear itself, say from the factory 3.37:1 to the aftermarket 2.97:1, the multiplication factor kicks in and changes the ratios throughout the rest of the gears even though you didn't actually change 2nd, or 3rd.

If you want a complete rebuild kit for your T5 that has everything you need in one box, try contacting The Gear Box , T5 Transmissions

They are great to deal with and send you everything you need to do the rebuild.

You can even download the Tremec T5 service manual for free directly from Tremec's website here, TTC: Product Literature




Richard
Tech Support
Tremec TKO, T45 & T56 Transmission Systems