3.73 or 4.10 rear end Gears, 01 GT

nhfire77

New Member
Jul 26, 2020
4
0
1
Hi all,

I have a 2001 GT with 75K. Would like a little more fun driving this and understand 3.73 or 4.10 gears will add fun (not power). I’m handy but after reading the Ford Performance Install manual, that is way over my head.


How much, on average does this cost for a shop to do this in the New England area?

——

It’s been said don’t have to change any other parts but realistically...

What are the bare minimum parts recommended to replace while swapping?

I really appreciate all the helpfulness and honesty on the form, thanks!
 
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nhfire77

New Member
Jul 26, 2020
4
0
1
Yea that’s my problem I can’t find anyone who has lately done it.

After reading the install instructions if you follow it exactly, it looks like 8 solid hours of labor. But my feeling is there is more than one way (faster) to do it
 

nhfire77

New Member
Jul 26, 2020
4
0
1
Thanks. They didn’t do it anymore but they had the name of a local guy known for it. And he quoted me “about $350-$400”. Sounds promising

anyone have any tips or tricks for unique issues when doing this work?
 

PSKSAM2

Founding Member
Feb 13, 2002
745
6
38
I've gotten quotes from $400-$800 here in North NJ, that's labor only, I am bringing all the parts (gears, new diff cover, install kit). I'm going with 3.73 in my 02. Also plan on having them install the brake upgrade kit for me, but I don't think that was driving the quote (still getting parts together for that..