1979-93 Mustang 31 Spline Heavy Duty Rear Axle Kit 4 Lug - 3.55 Gears

Price: 969.99 USD
Availability: InStock

1979-93 Mustang 31 Spline Heavy Duty Rear Axle Kit 4 Lug - 3.55 Gears

Build your 1979-1993 Mustang's 8.8" rear end the right way with this heavy-duty 4-lug 31 spline 3.55 gear rear axle kit.

Item #LRS-4204SDK-H

Everyday Low Price: $969.99

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Benefits

Bulletproof Your Rear End
Optimizes Traction
Improves Acceleration

Features

FRPP Carbon Clutch Disc Differential
Track-Ready Components
One Piece Forged Axles
3.55 Gears

What's in the Box

(1) Ford Performance 3.55 Gear Kit
(1) FRPP Carbon Clutch Disc 31 Spline Differential
(2) Hardened 31 spline 4 Lug Axles
(10) High Strength Steel 3" Studs
(1) Yukon Gear Install Kit w/ Koyo Bearings
(1) Ford Axle Bearing & Seal Kit
(1) Carrier Bearing Cap Stud Kit
(1) SVE Heavy Duty Differential Cover
(1) Pinion Flange

31 Spline Heavy Duty Rear Axle Kit 4 Lug - 3.55 Gears
When it's time to beef up your 1979-1993 Fox Body Mustang 8.8" rear end, look no further than this 31-Spline Heavy Duty Rear Axle Kit from LMR! We have taken out the guesswork in compiling this heavy-duty rear axle kit solution which packs in the performance for severe service, be it on the drag strip or the road course! Featuring core components from brands like SVE, Yukon, and Ford Performance, this kit ensures you have the right parts to keep your Mustang rolling with confidence.

31 Spline 4 Lug Rear Axle Conversion
These Yukon axles are stock length 31 spline with a 4x108 bolt pattern that allows the use of popular 4 lug wheels on your Fox Body Mustang. Yukon builds these axles from high-quality, 1541H forged steel that's hardened to increase torque capacity 25% over your stock axles. A set of 8 new wheel studs are included to make installation quick and easy!

Ford Performance 31 Spline Traction-Lok
Ford Racing Traction-Lok differentials optimize your vehicle's traction by transferring the power to both rear wheels. These limited-slip differential units use heavy plate-style clutches to ensure your engine's full power potential makes it to the ground and limit the "one-wheel wonder"! This differential helps you add strength to a vital component in your rear end. Ford Performance's 31 spline differential uses the same carbon fiber clutch packs used in the 2003-2004 Cobra, 2005-2014 Mustang GT, & 2007-2014 Shelby GT500 SVT Mustangs. Carbon-fiber friction plates are much more durable as they are designed for higher torque compared to their stock counterparts.

Ford Performance 3.55 Gears
These Ford Performance Mustang 3.55 gears are a great way to improve acceleration to make your Mustang faster! The kit features a set of Ford Performance 3.55 gears, a Yukon gear install kit w/ American made Koyo bearings. The bearing kit includes a GT500 style pinion bearing, new carrier bearings, pinion seal, ring gear bolts, pinion nut, crush sleeve, shims, and marking compound. PVTKF8.8-B GT500 Pinion Race & Bearings Included As An Upgrade For Factory Component

SVE Performance 8.8 Rear Axle Differential Cover
SVE's aluminum differential cover adds strength to your differential by reducing flex in the main bearings. When your differential bearings move, this allows the ring and pinion to mesh incorrectly, which in turn creates unwanted wear and can eventually lead to the infamous gear whine/failure. This heavy-duty differential cover comes with bolts, washers, and installation instructions to ensure proper installation.

What Else You May Need

Requires the use of open-end lug nuts due to the 3" length of the wheel studs.
75W140 gear oil and a friction modifier will be needed for installation.
If you want to install rear disc brakes with this kit, you must use SVE-4234HS hub centric rings.

Speedometer Correction