I've been a long time lurker here, and read quiet a few threads in bringing my "craigs list special" XJ back to life. Ive done a complete overhaul of everything under the hood, and interior and now am stuck with one last problem to resolve (at least for now lol)
So, original symptoms are that I would notice some vibration from the rear end while accelerating 35-40 mph and then it would clear and come back if under heavy load above 65 mph. But, much louder noise (like mechanical grinding & vibration) would be heard when decelerating.
Today I finally put the jeep on jackstands and accelerated the wheels to be able to spin the wheels and get a closer look at what is happening. I will say that I have replaced the ujoints and the noise has stayed the same. Noise to me sounds like it is still coming from that area, though ...
I am planning on replacing the driveshaft (mine has a shiny spot on it from where a weight or a sticker used to be), but I was wondering if anyone could shed any additional light on this.
It is a 1999 Xj, 4x4 with 156k miles on it. Rear leafs have been replaced with heavy duty ones (but I am not sure that it resulted in any lift).
Video attached https://www.youtube.com/watch?v=J2Ri6xxWE4s
So, original symptoms are that I would notice some vibration from the rear end while accelerating 35-40 mph and then it would clear and come back if under heavy load above 65 mph. But, much louder noise (like mechanical grinding & vibration) would be heard when decelerating.
Today I finally put the jeep on jackstands and accelerated the wheels to be able to spin the wheels and get a closer look at what is happening. I will say that I have replaced the ujoints and the noise has stayed the same. Noise to me sounds like it is still coming from that area, though ...
I am planning on replacing the driveshaft (mine has a shiny spot on it from where a weight or a sticker used to be), but I was wondering if anyone could shed any additional light on this.
It is a 1999 Xj, 4x4 with 156k miles on it. Rear leafs have been replaced with heavy duty ones (but I am not sure that it resulted in any lift).
Video attached https://www.youtube.com/watch?v=J2Ri6xxWE4s