3.73 or 4.10 rear end Gears, 01 GT

nhfire77

New Member

Jul 26, 2020

4

0

1

New Hampshire

Sep 6, 2020

#1

• Sep 6, 2020

• #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!

 

Last edited: Sep 6, 2020

D

Deleted member 38176

Sep 6, 2020

#2

• Sep 6, 2020

• #2

Gears are easily the #1 mod for these cars. I think I spent about $200 on labor (so long ago). IMO 4.10 is the "lowest" you should go

 

nhfire77

New Member

Jul 26, 2020

4

0

1

New Hampshire

Sep 7, 2020

#3

• Sep 7, 2020

• #3

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

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Sep 8, 2020

#4

• Sep 8, 2020

• #4

I believe other's I know have had gears installed here. I don't know their typical rates though

http://www.southernnewhampshireundercar.com/

 

nhfire77

New Member

Jul 26, 2020

4

0

1

New Hampshire

Sep 9, 2020

#5

• Sep 9, 2020

• #5

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?

 

P

PSKSAM2

Founding Member

Feb 13, 2002

771

8

38

NJ

Sep 11, 2020

#6

• Sep 11, 2020

• #6

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..

 

nhfire77

New Member

Jul 26, 2020

4

0

1

New Hampshire

Sep 11, 2020

#7

• Sep 11, 2020

• #7

Thanks I got a “around $400” quote.

what else should I get besides the gear, install kit and axle bearings/seals?

(and pads/rotors because it’s coming off and they are factory!)