XJR differential
#41
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al_roethlisberger (06-23-2014)
#42
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Really? Not sure if I'd go quite that far.
I'd say that the 3.27 is perfectly OK for regular driving. But if you want a bit more pep and response, go with the 3.58 gears. It's not like the 3.58 diff transforms the car into something entirely different.
Cheers
DD
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al_roethlisberger (06-23-2014)
#43
#44
It seems as the 94 xjs 3.54 diff is a little different, it seems as the companion flange, I believe that is the correct name, is different. On my xjr the flange has three bolts, one bolt at the end of each mounting point. On the xjs, it has four bolts within a circle. How do I overcome this problem, any thoughts and or advice is greatly appreciated. Thanxs
#45
Funny name companion flange till I looked it up
I always called them yokes
All you need to do is take the Companion Flange/Yoke of your diff and fit it to The XJS diff
Have a close look at the Centres do they look the same if so just change them over you will need to get a new crush tube and re set the pinion bearing load pressure may as well go for a new seal while its apart
This guy Differential Pinion Pre-Load Adjustment. made a home made tool for tightening the load pressure have a read it enlightened me with my diff rebuild
Might give you a few ideas if you are attempting it yourself
I would just order a crush tube http://www.motorcarsltd.com/jaguar-xj6-1994-differential-pinion-sleeve/
and seal Pinion Seal - MotorcarsLtd.com if you are going that far probably wouldnt hurt to chnge the oil as well
Then its just an install check your rear diff cage body mounts as well you have to pull the whole cage out
Its a pretty big job you only want to do it once
I always called them yokes
All you need to do is take the Companion Flange/Yoke of your diff and fit it to The XJS diff
Have a close look at the Centres do they look the same if so just change them over you will need to get a new crush tube and re set the pinion bearing load pressure may as well go for a new seal while its apart
This guy Differential Pinion Pre-Load Adjustment. made a home made tool for tightening the load pressure have a read it enlightened me with my diff rebuild
Might give you a few ideas if you are attempting it yourself
I would just order a crush tube http://www.motorcarsltd.com/jaguar-xj6-1994-differential-pinion-sleeve/
and seal Pinion Seal - MotorcarsLtd.com if you are going that far probably wouldnt hurt to chnge the oil as well
Then its just an install check your rear diff cage body mounts as well you have to pull the whole cage out
Its a pretty big job you only want to do it once
Last edited by doc; 06-26-2014 at 04:59 AM.
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MountainMan (06-26-2014)
#47
The yokes are interchangeable, but the saga continues. The diff case on the 94 xjs 3.54 is a little different then the case on my 95xjr6. It seems there are additional mounting points on the case of the xjr6 diff. Now, would it be possible to completely rebuilt my xjr6 diff with the ring and pinion from the xjs diff? just want to make sure before I drop my diff and buy the rebuild kit. Thanks all.
#48
Bit of a pita that its not a straight swap though
the gears are the same but you will need to go to a diff guy that knows how to set pinion pre-load on jaguars they are a bit tricky
On the other you old 3.25 gears are a extremely popular swap with the XJS V12 3 speed auto crowd
that's how I got my diff swapped it with a NA diff which he then sold my diff gears to a customer with a 3 speed auto XJS so don't think your old gears are worth nothing
LOL
If you where in Australia I could sell your old diff tomorrow guy just emailed me about my old diff yesterday
the gears are the same but you will need to go to a diff guy that knows how to set pinion pre-load on jaguars they are a bit tricky
On the other you old 3.25 gears are a extremely popular swap with the XJS V12 3 speed auto crowd
that's how I got my diff swapped it with a NA diff which he then sold my diff gears to a customer with a 3 speed auto XJS so don't think your old gears are worth nothing
LOL
If you where in Australia I could sell your old diff tomorrow guy just emailed me about my old diff yesterday
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