3.73 install question

[1slow03gt]

i'm thinking about putting 3.73's in my 03 gt with about 6600 miles on it...other then the ring and pinion and rear end fluid what else might i need...thanks oh and also what kind of fluid do ya'll recommend aswell as how much do i need...again thanks in advance

 

[menasci]

i'm thinking about putting 3.73's in my 03 gt with about 6600 miles on it...other then the ring and pinion and rear end fluid what else might i need...thanks oh and also what kind of fluid do ya'll recommend aswell as how much do i need...again thanks in advance

First of all, forget the 3.73's.
Get the 4.10's.
If I would have gotten the 3.73's I would have been pissed.
The 4.10's are just right.
I often wonder if I should have gotten 4.30's.

You will also need pinion and carrier spacers.
Perhaps the install shop will have these.
If not, order the install kit.

I used redline ATF.

 

[1slow03gt]

thanks for the info...who sales the install kit(online)?....nevermind i found it