The differential is whining on deceleration. I'm thinking pinion bearings at least. Does anyone know who made the diff on the 92 XJS? The local repair shop, Cottman in Greenville SC, says his biggest problem will be getting the correct bearings. I read somewhere that some XJSs had GM rear ends.

Anyway, I'd appreciate any help I can get on the forum.

PS. It has the 5.3 litre V12

 

Coventry West in the USA has all the bits you need for a diff rebuild.
Greg

 

As Greg says, Coventry West can fix you up with whatever you need. CW has tons of experience in Jag differentials. I'll wager, though, that the there's nothing exotic or unique about the bearings themselves.






Your differential is a Salisbury/GKN unit. The corporate history of the manufacturer is interesting. Anyhow, it's a kissin' cousin to the Dana 44 unit which has been configured for Jaguar applications. The Dana 44 design has been around for decades in Jeeps, various trucks, Corvettes, etc. It isn't GM-specific, though.

You might be thinking of transmissions. Your car has the GM TH400 transmission....again re-configured slightly for Jaguar applications. Jag used GM transmissions on certain models for quite a long time.

Cheers
DD

 

CW seems to be the best option.


But, a local off road shop has a lot of experience with this type unit.


Yeah, bearings are bearings. Once you get them out, one can probably find a maker and number on the race.


Makers just check catalogs a and design to fit. Tons of interchange. Money saving options available via the ID Ford vs Jaguar??? Fords used the DANA in some 4X4 applications, event thought their "9"" was more than up to the task,


Carl

 

when i did a rebuild of my 78 XJS rearend, Dana 44, all the parts including the ring& pinion gears(3.73} were available from a local off road shop!

most were just Jeep parts.

which brings to mind if GM did NOT help Jaguar with some components, we might not have had Jag after all!

thank the whole auto industry for respecting certain companies! also Ford,TATA.

 

"But, a local off road shop has a lot of experience with this type unit."

Many thanks for the reply but why an off road shop?

Stephen

 

Because the Dana differentials were and are extremely popular in larger pickup trucks and off road trucks, particularly fro front axle applications.
There is nothing hard about finding parts for these differentials, if you had a drivetrain specialist tell you that, run away!
Even if you were in the boonies, it's a simple matter of popping the old bearings and seals out, ordering the same part numbers and a couple of crush sleeves.
A competent differential shop should be able to do one of these in a half day.

 

I called Coventry West re a diif kit. Although they don't list a 92 XJS 5.3L, Al says that the DK 30 is what I need. According to the CW web site, the DK 30 is for the 1976-1985 XJS 5.3L. Is the diff in the 92 the same as the 76 to 85?

Thanks all.

Stephen