• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Best gear install kit + where to get it?

  • Thread starter Thread starter Kerpal
  • Start date Start date May 26, 2010
K

Kerpal

New Member
Aug 9, 2004
400
0
0
May 26, 2010
#1
  • May 26, 2010
  • #1
I need to pick up an install kit for these oem 3.55's I want to swap in. I suppose I should get one with new everything, i.e. pinion and carrier bearings & shims, pinion seal and nut, crush sleeve, ring gear bolts, marking compound. Any suggestions where to get such a kit? Are the Ford kits better than say one from Motive or Ratech?

Also I'm wondering if I should spend a little extra and get a solid pinion spacer and shim kit rather than a regular crush sleeve. Seems like it might be easier to install. What do people typically use to hold the pinion flange in place while torquing the nut? I have the rearend out of the car on jackstands for all this which hopefully should help make things easier.
 

BlackGT89

Member
Dec 16, 2002
774
8
18
Huntsville, AL
May 26, 2010
#2
  • May 26, 2010
  • #2
I'm getting ready do install my 5 lug Ranger axles so I was thinking about upgrading from 3:55's to 3:73's at the same time. Then I noticed Summit's FMS 3:73's won't ship until the middle of June or so, so that slowed up my plans a bit. Summit does have the install kits ready to ship I think. I was thinking about using the crush sleeve eliminator kit also but they are very hard to find. In light of that I've pretty much decided to stick with the crush sleeve this time.
 
H

HaynStang

New Member
Dec 16, 2006
124
0
0
Portland
May 27, 2010
#3
  • May 27, 2010
  • #3
I ended up ordering a Motive kit from AmericanMuscle since the price is as low as anywhere else for a complete kit ($75), plus they have free shipping. I'm just going to stick with the crush sleeve, I'm interested to see if compressing it is as hard as some people say. I don't think it will be too bad.

FYI Ratech sells the solid pinion spacer & shim kit for $15, plus shipping. I would think Summit and Jegs would carry it too but maybe they're a lot less commonly used than I had thought.
 
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
382
Fox 5.0 Mustang Tech May 9, 2026
Mindseye007
J
2004 Mustang 3.8L V6 vibrations above 65 MPH and differential leaks
  • joeybuddy96
  • Mar 16, 2026
  • SN95 V6 Mustang Tech
Replies
16
Views
567
SN95 V6 Mustang Tech Jul 14, 2026
joeybuddy96
J
O
Progress Thread LTD-ing
  • OX1
  • Mar 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
369
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 6, 2026
OX1
O
S
Drivetrain 8.8 Pinion and 302 rear main seal leaks after replacing. 93 5.0 with t-5
  • Steigy4827
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
666
Fox 5.0 Mustang Tech Apr 1, 2026
Steigy4827
S
3
Eight inches is enough for me...
  • 351MooseStang
  • Nov 27, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
5
Views
574
1974 - 1978 Mustang II Talk & Tech Mar 2, 2026
Bullitt347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 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?