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Yukon Gear 8.8 in. Duragrip Posi Rear Differential w/ 31 Spline 5 Lug Axles (94-98 GT, Cobra)

Market Price $661.97 You Save 12% ($76.16)
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$585.81 (kit)

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  • Item 393819

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    Features & Details

    • Put the Power to the Pavement
    • 8.8" Limited Slip Differential
    • Heavy Duty Nodular Case
    • Forged 4320 Internals
    • Yukon 31 Spline 5 Lug Axles Included
    • Fits 1994-1998 GT and SVT Cobra w/ an 8.8" Differential Housing
    Put the Power to the Pavement. The factory differential found in the SN95 Mustang doesn't exactly allow for maximum power and maximum torque to hit the roadway. With a Yukon DuraGrip Posi Rear Differential, you'll be able to maximize the performance of your Mustang, improving its traction without ruining its responsiveness. This Yukon Kit includes an 8.8in 31 Spline DuraGrip Posi Differential, a pair of 31 spline 5 Lug Axles and all the bearings and shims required for installation. This Yukon kit is ideal for those GT and SVT Cobra owners who are looking to upgrade their stock differential and axles for better traction and more impressive burnouts.

    Posi Rear Differential. The DuraGrip Posi Rear Differential features a case constructed from a heavy duty nodular iron and boast forged 4320 steel internals and composite clutches for dependable heavy duty performance and long life.

    31 Spline 5 Lug Axles. Stronger than OEM, Yukon Gear manufactures their 31 spline 5 lug axles from high quality 1541H alloy steel for superior strength. They use a rolled spline process that produces an axle spline that is up to 30% stronger than standard cut splines.

    Durable Alloys. The parts in this Yukon Gear and Axle kit are built from high quality, heat-treated metal alloys for long-term durability. Top quality ensures extended use before needing to replace the parts. This complete axle kit includes everything you need for optimal road handling.

    Application. This Yukon Gear 8.8 in. DuraGrip Posi Rear Differential Upgrade Kit with 31 Spline 5 Lug Axles is designed for 1994 to 1998 GT and SVT Cobra Mustangs equipped with a 8.8" rear differential housing.

    Technical Note. 1986-2004 V8 Mustangs came factory equipped with 28 spline axles, except for 2003-2004 SVT Cobras which were 31 spline. You will need to reuse your factory 8.8" gear set, or upgrade to a set of our 8.8" rear gears required for this Limited Slip Differential. No aftermarket gears are included. For normal driving conditions we recommend you use 75W 90 rear gear oil. This will give you the same oil weight as factory. For colder temps or race use try 75w 140.

    Fitment: 1994 1995 1996 1997 1998 Details

    MPN# 393819

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) 8.8" Limited Slip Differential
    • (2) 31 Spline 5 Lug Axles
    • Carrier Bearings
    • Carrier Shims
    • Axle Bearings
    • Seals
    • Studs
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Customer Reviews (3) Write a Review

    Overall Rating 3.7

    out of 5 stars

    Installation Time:Afternoon

    • Performance Gain 5 5
    • Fit 5 5

    • 1/5

      Installation Time: Afternoon

      November 20, 2017

      Carriers Junk

      Bought the kit thinking it was good for the amount of power the car makes... about 400 RWH. tried to put the "power to the pavement" second pass to the 60' booom that's all she wrote, spider gears exploded. Waste of money.


      Year: 1995 Submodel: Cobra

      Helpful (13)

    • 5/5

      Installation Time: Afternoon

      June 30, 2017


      This kit came with everything to upgrade my 8.8 and handles all the torque and boost I throw at it on drag radials


      Year: 1994 Submodel: GT

      Helpful (14)

    • 5/5

      Installation Time: Afternoon

      January 10, 2017

      Yukon Gear w/ Axles

      What more could you ask for?! This is an awesome kit put the Power to the Pavement! It features Heavy Duty - Nodular Case with Forged 4320 Internals. Love that Yukon 31 Spline 5 Lug Axles are Included. Be prepared to set aside sometimes as it will take an afternoon.


      Year: 2003 Submodel: Cobra

      Helpful (14)

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