Hi all
(long read!)
I thought I would post my experiences with repairing the output
differential shaft on my 1987 XJ40 and to warn people of the
potential disaster if these are left too long!
In my excitement to quickly seal the purchase deal (don�t do this!)
on my 40 (my F250, straight trade) I neglected to notice the right
rear wheel at a VERY noticeable tilt. (top in) The rear also made a
growling roar type noise as we drove it. When I jacked up the rear
of the car, the top of the rear wheel moved about �2 inches� in and
out! This needed to be fixed immediately!
Stopping at Jaguar I picked up a JLM615 bearing retainer collar as
this wasn�t available anywhere else, and one JLM621 O-ring for a
total of about $85.00 Canadian. The outer bearing JLM11527 crossed
to a SKF-6207-J for $18.00 at a local supplier instead of $68.00
for the Jaguar part, which I�ve been told may have actually been
the same SKF bearing anyway.
Repair:
In a level driveway, block both front wheels, park-brake on, raise
rear of car and place a quality heavy-duty jack stand on each side
of car and use the floorjack as a third safety under the
differential. Remove rear wheel.
Remove lower attachment for the level sensor, need one 10mm wrench
to hold one side and a 10mm socket for the locknut. Angle it out of
the way. You need this extra room for the half-shaft.
Take a 17mm socket and put a long extension on it and then run it
against a grinder lightly as you rotate it. You need to take a few
thousandths off the lower � inch and possibly the top � inch as
well. This socket is what you need to remove all 4 nuts and 5 bolts
and YES it needs to be a thin wall!
These bolts and nuts being original and nearly 20 years old are
TIGHT! And if you take too much off the socket it will crack it.
Starting with the output shaft nuts, I needed to position them
right at about 11:30 as you look over the hub, this puts the 17mm
and 2 foot long extension right against the exhaust pipe and I
tapped the extension with a hammer to be positive the socket was
fully seated. Did I mention they were tight??!! They would ‘‘CRACK’’
about 5 times each as they loosened that first turn.
When I removed all 4 nuts I placed the halfshaft down and supported
the hub so the ABS wires didn�t pull out. When you pull back the
halfshaft you will wonder how the heck are you going to remove the
5 bolts holding the flange or collar to the diff as there isn�t ANY
access holes in the output shaft stud end!!! I�m starting to panic
as I now have 5 monster tight bolts that are impossible to get a
socket on and a box end 17mm isn�t thin enough to go on either!
Continued next…–
–>Proud Owner of a 1987 XJ40 Sov.
Victoria BC, Canada
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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