• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

3.73 install question

  • Thread starter Thread starter 1slow03gt
  • Start date Start date Apr 13, 2004
1

1slow03gt

New Member
Oct 25, 2003
34
0
0
jacksonville
Apr 13, 2004
#1
  • Apr 13, 2004
  • #1
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

Member
Aug 17, 2003
640
1
16
Chandler, AZ
Apr 13, 2004
#2
  • Apr 13, 2004
  • #2
1slow03gt said:
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
Click to expand...

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.
 
1

1slow03gt

New Member
Oct 25, 2003
34
0
0
jacksonville
Apr 13, 2004
#3
  • Apr 13, 2004
  • #3
thanks for the info...who sales the install kit(online)?....nevermind i found it
 
You must log in or register to reply here.

Similar threads

K
Drivetrain '87 5.0 Installing New Ring Gear and Pinion - Pattern Questions
  • karhoot
  • Apr 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
396
Fox 5.0 Mustang Tech May 9, 2026
Mindseye007
Drivetrain Rear end clunk
  • seanmahoney
  • Oct 13, 2025
  • SN95 4.6L Mustang Tech
Replies
3
Views
425
SN95 4.6L Mustang Tech Oct 13, 2025
nickyb
J
2004 Mustang 3.8L V6 vibrations above 65 MPH and differential leaks
  • joeybuddy96
  • Mar 16, 2026
  • SN95 V6 Mustang Tech
Replies
16
Views
607
SN95 V6 Mustang Tech Jul 14, 2026
joeybuddy96
J
S
Rear end noise while driving low and high speeds
  • skkrtis
  • Apr 7, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
5
Views
940
2005 - 2014 S-197 Mustang -General/Talk- Feb 9, 2026
Broncin491
B
A
Procharger install/prep questions
  • ahratrew
  • Nov 22, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
376
SN95 4.6L Mustang Tech Nov 26, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?