1994-98 Mustang 8.8" 31 Spline Heavy Duty Rear Axle Kit 3.73 Gears

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  • 8.8" 31 Spline Heavy Duty Rear Axle Kit Mustang 3.73 Gears (94-98)
8.8" 31 Spline Heavy Duty Rear Axle Kit Mustang 3.73 Gears (94-98)

Beef up your Mustang's 8.8" rear end the right way with this heavy duty rear axle kit with 3.73 gears!

Item #LRS-4204SDK-C

Everyday Low Price: $999.99

Out of Stock 

Not Available for APO or Air shipping.

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  • Bullet Proof Your Rear End
  • Optimizes Traction
  • Improves Acceleration


  • Track-Ready Components
  • One Piece Forged Axles
  • 31 Spline
  • FRPP Carbon Clutch Disc Differential
  • Fits 8.8" Rear End

What's in the Box

  • (See Description Below For Components)

Product Description

1994-1998 31 Spline Conversion Kit

So, you want to beef up your Mustang's 8.8" rear? How about a kit that gives you EVERYTHING you need to make it bullet-proof? We include everything you need to make your rear axle ready for severe service, be it on the drag strip or the road course!

Kit Includes:
- FRPP Carbon Clutch Disc 31 spline differential
- Hardened 31 spline 5 lug axles YA-FM4235D
- High Strength Steel 3" studs MOR-46180
- Ford Racing (FRPP) 3.73 gears M-4209-88373
- FRPP M-4210-B2 bearing kit
- Axle bearing & seal kit AK-1563
- Carrier bearing cap stud kit M-4034-A
- Heavy duty differential support/cover M-4033-G2
- Pinion flange LRS-4851A
- 75W140 Royal Purple synthetic gear oil

- Axles do not include ABS rings. Reuse factory ABS ring or replace with LRS-2189A.

Due to Hazmat regulations, lubricants/fluids cannot be shipped to APO/FPO addresses.

Ford Performance Racing Parts - NO WARRANTY - Click Here

Speedometer Correction
After installation of rear gears, you will need to correct the speedometer. There are different methods to do this depending on year model.

1979-1995 Speedometer Correction - Click Here

1996-2017 Speedometer Correction - Click Here

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Product Reviews (2)

out of 5 stars
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2 reviews
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2 of 2 REVIEWS
2 of 2 REVIEWS

5 Stars   great product and great service
By on 2/24/2014
I ordered this kit to complete my 5 lug conversion on my 93 Foxbody. I am currently in Afghanistan so my father is going to install the parts for me. The customer service from LMR was top notch and the parts were at my fathers house in 2 days. Thank you LMR for you great service. I will be coming to you guys for all my restoration needs,

Yes, I would recommend this item to a friend!

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5 Stars   Great kit. Top quality.
By on 10/30/2017
Everything was top notch. Install went great. Holding up great. Had everything I needed. Did have them swap out the lug bolts for arp which I needed for my install and sn95 flanges w/ fox length. Suggest professional installation. Fortunately I'm a VW Master tech so I managed but it does take some know how beyond the average 'remove and install in reverse abilities' and some special tool to do correctly. Only issues I currently have a passenger axle seal seeping and it is damp around the girdle support lock bolts little sealer on the bolt threads could likely solve that though.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 1994 (94) - 1995 (95) - 1996 (96) - 1997 (97) - 1998 (98)

Look for Similar Items by Category

Ford Mustang Parts » Mustang Drivetrain » Mustang Rear End & Axles » Mustang Rear Axle Kit
1994-2004 Mustang Parts » 1994-2004 Mustang Drivetrain » 1994-2004 Mustang Rear End & Axles » 1994-2004 Mustang Rear Axle 31 Spline Kits

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