Moser Custom Alloy Axles are without question the best in the business. We begin with premium quality "MADE IN THE USA" Alloy Steel that is forged right here in Portland, Indiana just blocks from our manufacturing facility using Moser designed tooling, induction heat-treated to optimize torsional strength, and 100% magnafluxed. This process not only gives the axle strength of a "race only" axle but makes it ideal for street use as well. The axles are specifically designed and engineered to take the stress and strain of both racing and high performance street uses. Our axles are available in any spline count and can be made to fit virtually any rear end setup. All popular bearing sizes and bolt pattern combinations are available. If your future plans call for a narrower rear, Moser Custom Alloy Axles can be shortened and re-splined to fit your needs and bolt pattern changes can also be made.
HD 4140 Chromoly Rear Axles – 2006-2010 Jeep Grand Cherokee WK1 SRT8
Upgrade the weak link in your high-performance Jeep SRT8 with HD 4140 Chromoly Rear Axles from Moser. Designed specifically for the 2006-2010 Jeep Grand Cherokee WK1 SRT8, these upgraded rear axle shafts are built to handle the increased torque and horsepower produced by modified 6.1L HEMI engines, forced induction builds, drag racing applications, and high-performance street vehicles. They replace the factory MOPAR 52114077AA and 52114076AA rear axle shafts.
Built for High Horsepower Jeep SRT8 Applications
The factory WK1 SRT8 rear axles were designed around OEM power levels. Once horsepower and torque are increased, especially with superchargers, turbochargers, nitrous, aggressive tuning, sticky tires, or drag-racing launches, the additional drivetrain shock can place significantly greater stress on the axle shafts. A broken rear axle can leave your Jeep stranded and potentially cause expensive collateral drivetrain damage.
These Moser 4140 alloy steel rear axles provide a substantial performance upgrade over stock replacement shafts. They are manufactured from premium alloy steel, forged in the USA, induction heat-treated for optimized torsional strength, and 100% magnaflux inspected. The result is an axle engineered for demanding racing and high-performance street use.
These axles are rated for 1000HP+ and are sold as a matched pair. The standard configuration uses 31 x 29 spline with stock-length shafts measuring approximately 30.935” and 32.5”. An optional 31-spline wheel-side configuration is also available, but the wheel hubs must be professionally broached for the larger spline.
Why Upgrade Your WK1 SRT8 Axles?
If you’re building a high horsepower Jeep Grand Cherokee SRT8, don’t overlook the rear axle shafts. Upgrading before the factory shafts fail can provide greater confidence at the track, during hard launches, and under aggressive street driving.
Key Features:
- HD 4140 Chromoly / alloy steel construction
- Rated for 1000HP+
- Direct-fit stock-length application
- Sold as a pair
- Made to order by Moser
- Induction heat-treated
- 100% magnaflux inspected
- Designed for racing and high-performance street use
- Replaces MOPAR 52114077AA & 52114076AA
Whether you’re searching for Jeep SRT8 upgraded axles, WK1 SRT8 chromoly axles, 4140 rear axle shafts, 1000HP Jeep axles, Moser SRT8 axles, or high-performance Jeep Grand Cherokee rear axles, these HD shafts are an ideal upgrade for a serious performance build.
Upgrade your 2006-2010 Jeep Grand Cherokee SRT8 drivetrain with HD 4140 Chromoly rear axles from East Coast Driveline. Shop the HD 4140 Jeep SRT8 Rear Axles
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