Rear End Swap?

Switching the rear end of a 1987 Ford F-150 to a version with disc brakes involves a few considerations. The F-150 has been a popular truck model with various configurations over the years, so it's important to find a rear end that's compatible with your specific truck. Here are some key points to consider:

Direct Fit from Another Ford Model: Look for rear ends from other Ford trucks or SUVs from a similar era that came with disc brakes. For example, some Ford Expeditions or later F-150 models might have compatible rear ends. However, modifications may still be needed.

Axle Width and Spring Mounts: Ensure that the axle width is similar to your current setup, and that the spring mounts are in the right location or can be modified to fit.

Brake System Compatibility: Check that the brake system (master cylinder, brake lines) in your F-150 is compatible with the disc brake setup you choose. You may need to upgrade other components of your brake system to ensure proper functionality and safety.

Gear Ratio Matching: It's important to match the gear ratio of the new rear end to your current setup, especially if you're keeping the front axle stock in a 4WD setup. For a 2WD, consistent gear ratio is less critical but still important for performance.

Driveshaft Compatibility: The driveshaft may need to be modified or replaced to fit the new rear end.

Bolt Pattern: Ensure the bolt pattern on the new rear end matches your wheels.