Re: Notable clunk from under the car on my

Posted by GaryinSC On 2022/3/28 8:20:08

It might not need replacing just lubrication. Try filing the joint with 90 wt gear oil and see if that makes the noise change or go away. There should be a pipe plug where the oil goes in. Sometimes guys will replace that plug with a grease fitting, which is not the proper way to lube the joint. This sounds much like the pop you get from a posi-traction rear end where the clutches dry out and stick to each other. They make a posi lube additive which makes the gear oil a bit slicker to get between the clutches. That additive might also work in this application.