Ford Performance Differential Trac-Lok Limited Slip 31-Spline 9"

Ford Performance: M-4204-F31A
MSRP: $565.00
CJ's Low Price:
1508544000 23628
When you order this Trac-Lok Differential you might want to purchase the items listed below.
Ring And Pinion Gear 3.70 Set 9" - Ships from Manufacturer
CJ's Low Price:
CJ's Low Price:
Earn 474 RPM Points What's this?
Ford Performance Differential Trac-Lok Limited Slip 31-Spline 9"
Ford Performance

Product Description

Ford Performance 9" 31-Spline Trac-Lok Limited Slip Differential.

Are you looking for a heavy duty rear differential that can withstand some horsepower? If so it might be time to replace your damaged original differential and replace it with this Trac-Lok Limited Slip Differential from Ford Performance. The rear differential is an upgrade for all Ford Vehicles with a 9" Rear End. Ford Performance's Trac-Lok Limited Slip Differential is designed to work on all Ford Vehicles with 31 Splined Axles.

This Trac-Lok Differential from Ford Performance is a direct fit replacement for your Ford with a Ford 9" and will maintain the high-quality that Ford Performance (formerly Ford Racing) has set. Ford Performance manufactures this differential with limited slip. This will transfer 100% of torque to each rear wheel simultaneously, allowing both wheels to put the power down on the ground for increased traction and a better overall driving experience.

Trac-Lok Differential Features and Benefits:
- Fits Ford 9" Rear Ends
- 31 Spline Differential
- 4-Spring Aggressive Torque Bias
- 1536 Steel Billet Case Caps
- High Strength Nodular Iron Case
- Serviceable

The rear axle has a lot of work to do to keep your classic Ford moving forward. While one job of the rear axle is to hold up the rear end, it also drives the rear wheels, by taking the power from the engine and running through the differential, which turns the rear axle. The differential also has to adjust the rear axle to compensate for the turns you make in your Ford vehicle, since one wheel is going to need to move slower than the other when going around a corner.

Please Note: Ford Performance requires 4-ounces of friction modifier with initial fill.

If you're looking for parts for your Ford Mustang, Bronco or truck, you should start by looking at the more than 600 premium parts that CJ Pony Parts offers from Ford Performance (formerly Ford Racing). By buying your Ford Performance parts from CJ Pony Parts, you know you're getting your high-quality parts from a reliable, reputable dealer, since CJ Pony Parts is a Top 10 Ford Performance Dealer and has been for the last 10 years. When you buy your Ford Performance parts from CJ Pony Parts, you know you have a winning combination--this means dependable, quality care for your Ford vehicle!

Purchase a new Ford Performance 9" 31-Spline Trac-Lok Limited Slip Differential M-4204-F31A from CJ Pony Parts today!

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Mustang years:

Bronco Applications

This product will fit the following Bronco years:

Product Reviews

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Product Questions

Would this fit a 9 3/8 rear 31 spline in a 1970 Thunderbird?

Asked by: Jordan1970tbird
No it will not.
Answered by: rk cjpp
Date published: 2016-05-16

do u have a 35 spline unit

Asked by: butch45
No, we don't offer any 35 spline units.
Answered by: CJ Pony Parts
Date published: 2017-01-27

Is this dif complete and ready to install--nothing extra needed Will this dif fit a 70 boss 302. Is the dif housing exactly the same dimension as the boss 302 dif width wise. (Must work with my custom made rims)

Asked by: Chillawacky
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