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Mountain Off-Road 98700 Ford 8.8 Axle Swap Kit for 97-06 Jeep Wrangler TJ & Unlimited

Quadratec Part #: 12590.0252
Mountain Off-Road Part #: 98700
Installation Kit for 1997-2006 TJ's - No paint. This Ford 8.8 install kit includes the following items: Upper and lower control arm brackets, Coil spring seats and retainers, sway bar brackets, shock brackets and a trac bar bracket. All hardware is unpainted and requires welding.

Features of the Ford 8.8 install kit are as follows: same lug nut bolt pattern; disc brakes (95 & newer); 31 spline axle shafts; 8.8" diameter ring gear (D35 is 7.5"); 120% stronger than D35; only 20 pounds more than D35; trac-loc differential stock; and 3-1/4" diameter tubes (strong!).

You now need to find the complete rear axle assembly from a 95 or newer Ford Explorer from a salvage yard. Then, remove (torch) the Ford mounts (spring & anti-sway bar). You may also need to change the gear ratio as most Explorers have 3:73. The Ford 8.8 kit gives you the following: new, weld-on anti-wrap spring mounts, weld-on shock mounts, U-bolts and U-bolt plates.

The width is almost the same. It is 5/8" per side narrower than the D35. This is a very minor drawback and will work if you have wheels with less backspace than stock. 7/8" thick wheel spacers available. No cutting or custom fitting is needed.

Note: The Ford 8.8 install kit is not compatible with anti-lock brake equipped Jeep® vehicles!

Installation Notes
Installation Difficulty:
Level 4Experts Only

1. Welding Required.

Installation Time: 3-5 hours
Parts Included

Upper Control Arm Mounts
Lower Control Arm Mounts
Coil Spring Mounts
Coil Spring Retainers
Sway Bar Brackets
Trac Bar Bracket
Shock Brackets

RockProof Lifetime Warranty
  • Shipping Weight: 24lb
  • Shipping Dimensions: 14in x 7in x 7in (L x W x H)
  • Jeep Wrangler (TJ)

  • 2006 Jeep Wrangler (TJ)
  • 2005 Jeep Wrangler (TJ)
  • 2004 Jeep Wrangler (TJ)
  • 2003 Jeep Wrangler (TJ)
  • 2002 Jeep Wrangler (TJ)
  • 2001 Jeep Wrangler (TJ)
  • 2000 Jeep Wrangler (TJ)
  • 1999 Jeep Wrangler (TJ)
  • 1998 Jeep Wrangler (TJ)
  • 1997 Jeep Wrangler (TJ)
  • Jeep Wrangler Unlimited (LJ)

  • 2006 Jeep Wrangler Unlimited (LJ)
  • 2005 Jeep Wrangler Unlimited (LJ)
  • 2004 Jeep Wrangler Unlimited (LJ)
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Mountain Off-Road Ford 8.8 Axle Swap Kit Reviews