Rear end or transfer case issue?

If you're experiencing binding or vibration while turning at low speeds, there could be a few potential causes. While the rear differential or transfer case could be related to the issue, it's important to consider other components as well. Here are some insights to help you diagnose and address the problem:

Rear Differential: A malfunctioning or improperly lubricated rear differential can cause binding or vibration during turns. It's possible that worn or damaged differential gears, bearings, or limited-slip components could be the culprit. Inspect the differential for any signs of leaks, excessive wear, or abnormal noises. If necessary, you may need to remove the differential cover to inspect the condition of the gears and components.

Transfer Case: The transfer case transfers power from the transmission to the front and rear axles. If there are issues with the transfer case, such as damaged gears, bearings, or a faulty chain, it could cause binding or vibration during turns. Inspect the transfer case for leaks, abnormal noises, or signs of damage.

CV Joints and Axles: Constant Velocity (CV) joints and axles are responsible for transferring power from the transmission to the wheels while allowing for flexible movement during turns. Worn or damaged CV joints or axles can cause binding, vibration, or clicking sounds during turns. Inspect the CV joints and axles for any signs of damage, such as torn boots, excessive play, or worn-out components.

To diagnose the exact cause, you can perform the following steps:

Visually inspect the components mentioned above for any obvious signs of damage, leaks, or wear.

Check the fluid levels and condition in both the rear differential and transfer case. Low or contaminated fluid can contribute to issues.

If the issue seems to be related to the rear differential, consider removing the differential cover to inspect the gears and components. Ensure you have a plan in place to catch and dispose of any fluid that may come out.

If the issue seems to be related to the transfer case, you may need to remove the driveshaft between the transfer case and rear differential to inspect the transfer case output shaft and the front of the rear differential. Again, take care to manage any fluid that may be present.