📦 Heavy-Duty 9-Inch Rear End Crate Assembly – Direct Bolt-In for GM A-Body (1968-72 Chevelle, Skylark, Cutlass, GTO, Monte Carlo, El Camino)
Now you can upgrade your GM A-Body vehicle (Chevelle, Skylark, Cutlass, GTO, Monte Carlo, El Camino) with the legendary Ford 9-inch rear end, known for its unmatched strength and ease of maintenance. This Currie Crate Rearend is built with stock overall width, pinion offset, and factory mounting points, making it a 100% bolt-in upgrade with no modifications required.
Equipped with 31-spline performance axle shafts, heavy-duty Torino-style large bearing housing ends, and pre-installed urethane control arm bushings, this rear end is perfect for street, track, and high-performance applications. Designed to work seamlessly with Speedway rear disc brake kits, 11” Ford Explorer disc brakes, and Wilwood disc brakes, it provides maximum stopping power and durability.
Perfect for:
✔️ Classic Muscle Car Restorations
✔️ Drag Racing & High-Performance Builds
✔️ Daily Drivers & Street Machines
🔹 Key Features & Benefits
✅ Heavy-Duty 9-Inch Housing – Built for high-horsepower applications
✅ Direct Bolt-On Replacement – No cutting or welding required
✅ 31-Spline Performance Axles – Increased strength & durability
✅ Torino-Style Large Bearing Housing Ends – Compatible with aftermarket disc brakes
✅ Pre-Installed Urethane Control Arm Bushings – Reduces deflection & increases ride quality
✅ Stock 5×4.75” Bolt Pattern – Fits factory & aftermarket wheels
✅ Includes Heavy-Duty Bearing Retainers – ¼” thick for long-lasting reliability
✅ Precision Timken-Style Bearings – Ensures smooth operation & longevity
✅ Customizable Differential Options – Third member sold separately for tailored performance
✅ Works with Popular Brake Kits – Compatible with Speedway, Wilwood & Explorer disc brakes
🔹 Technical Specifications
⚙️ Rear End Assembly & Performance
Feature | Details |
---|---|
Vehicle Fitment | 1968-72 Chevrolet Chevelle, Monte Carlo, El Camino, Buick Skylark, Oldsmobile Cutlass, Pontiac LeMans/GTO |
Overall Width | 61.25” |
Axle Type | Semi-Floating |
Axle Splines | 31 |
Bearing Type | Tapered Timken-Style |
Housing Material | Heavy-Duty Steel |
Bolt Pattern | 5×4.75” |
Control Arm Bushings | Pre-Installed Urethane |
Brake Compatibility | Speedway, Wilwood & Ford Explorer Disc Brakes |
⚙️ Fitment & Compatibility
Feature | Details |
---|---|
OEM Mounting Points | Yes – Direct Bolt-On |
Third Member Compatibility | Customizable Gear Ratio (Sold Separately) |
Includes Bearings & Seals | Yes |
Finish | Natural |
Differential Included | No – Allows for Custom Gear Selection |
🔹 What’s Included in the Kit?
✔️ Heavy-Duty 9-Inch Rear End Housing
✔️ (2) 31-Spline Performance Axle Shafts
✔️ Torino-Style Large Bearing Housing Ends
✔️ Pre-Installed Urethane Upper Control Arm Bushings
✔️ 7/16″-20 Wheel Studs (Pre-Pressed)
✔️ Heavy-Duty ¼” Bearing Retainer Plates
✔️ Precision Timken-Style Wheel Bearings & Seals
✔️ Third Member Studs (Pre-Installed)
⚠ Note: Third member is NOT included – allowing you to select the best gear ratio & differential for your build.
❓ Frequently Asked Questions (FAQ)
🔹 Why should I upgrade to a Ford 9-inch rear end for my GM A-Body?
- The Ford 9-inch is stronger and easier to service than factory GM 10-bolt or 12-bolt differentials.
- Offers more gear ratio options, allowing you to customize your drivetrain setup.
- Torino-style housing ends improve brake compatibility for better stopping power.
🔹 Will this rear end fit my stock GM suspension and wheels?
- Yes! This is a direct bolt-on for 1968-72 GM A-Body vehicles and retains the stock 5×4.75” bolt pattern.
🔹 What differential should I use with this rear end?
- This housing is designed for Ford 9-inch third members, allowing you to choose your preferred gear ratio and limited-slip differential.
🔹 Do I need to break in the rear end after installation?
- Yes! Follow this break-in procedure for maximum longevity:
- Use 85w140 mineral-based gear oil for the first 500 miles.
- Run the rear end on jack stands at idle for 20-30 minutes, shifting between forward & reverse.
- After break-in, you can switch to synthetic gear oil for enhanced performance.
🔹 What brake kits are compatible with this rear end?
- Works with:
- Speedway Motors Rear Disc Brake Kits
- Wilwood Disc Brakes
- 11” Ford Explorer Disc Brakes
🔥 Call to Action – Order Now!
Upgrade your 1968-72 GM A-Body (Chevelle, Skylark, Cutlass, GTO, Monte Carlo, El Camino) with this bolt-in 9-inch rear end crate assembly, offering superior strength, improved reliability, and better braking options. Whether you’re building a high-performance street machine, a pro-touring classic, or a drag racer, this heavy-duty Currie 9-inch rear end is the perfect solution!
🛒 Limited stock available – Order today for fast shipping! 🚀
Installation Notes:
When installing new axles in rearends with posi traction differentials, be sure to install the driver’s side axle first to keep the splines properly aligned. Failure to do so may move the two splined gears out of alignment, and it may be difficult to install the driver’s side axle properly if the passenger side axle is already installed.
Ifinstallation of passenger side axle is done first it may require two people when installing the driver’s side axle, with both parties rotating reach axle until splines are in line and the driver’s side axle fully sides into the housing.
To ensure you get the most out of your new 9 Inch components, Currie recommends that you perform a proper break-in process:
- Use a name brand mineral-based gear oil, preferably 85w140 (Extremely high quality synthetic oils may be used once break-in process has been successfully performed)
- Place vehicle on jack stands and let the rearend spin while the vehicle idles – run transmission in both forward and reverse periodically throughout the process
- Continue to run the rearend until the pinion gets hot (place hand on bottom of the differential housing to verify this)
- Proper break-in allows:
- The ability to install new axles and hit the track the same day without worry
- Extended life for rearend components
- Keeps the quality and life of your gear oil
Note: If you find that your rearend is running somewhat “tight” be sure to add Currie’s 9+ Friction Modifier to “loosen up”. If a more aggressive performance is desired, Friction Modifier is not needed.
Application
Currie GM A-Body Crate Rearends fit the following chassis applications:
- 1968-72 Chevy Chevelle
- 1970-72 Chevy Monte Carlo
- 1968-72 Chevy El Camino
- 1968-72 Buick Skylark
- 1968-72 Oldsmobile Cultass
- 1968-72 Pontiac LeMans/GTO
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