Current mileage: 141,773
Jaguar X300 Rear differential service – carried out in April 2012
The next job on my list was to have the rear diff serviced, as it had been leaking oil since I purchased Brucie in Nov 2010 and I hadn’t got as far as having the work done until April 2012.
I was told by a main dealer that Brucie would need a new rear diff. I went away to mull this over, and see how much a new or used rear diff would cost. On thinking about it further, I decided that I wouldn’t want to risk buying a used rear diff, as it might be a whiner! Then I asked myself “why would Brucie need a new rear diff when his didn’t whine?” Surely it only needed the seals renewing in order to stop the oil leakage? I did a bit of independent research and my theory was confirmed, so I returned to the Main Dealer and pointed this out, stating that I was not prepared to swap my cars rear diff for an equivalent used one, and if a new one were purchased, as far as I was aware it would still need assembling, as they arrive minus their seals and outputs shafts anyway, so why not just order the seals and change those? This was, in fact, what was done in due course, so now Brucie does not leak oil from his rear diff anymore!
The work was carried out by a Jaguar Main Dealer and unfortunately I was unable to get any pictures of the work in progress.
Parts used included:
|Number on diagram||Description||Part Number|
|11||Output shaft oil seal (x2)||JLM12138|
|12||Diff bearing retaining plate (1)||JLM20181|
|13||Torx head bolt (x5)||JLM12139|
|15||Diff output (ball) bearing (x2)||JLM11527|
|16||Shaft bearing retaining collar (x2)||JLM615|
Although I can find no invoice for the drive shaft shim kit or O ring, I am sure these would also have been replaced.
Please refer to the diagram and full parts list below, provided by Jaguar Heritage Parts