Remove differential side ring, pinion side gear and pinion cross shafts complete with gears. Remove remaining side gear and ring and extract remaining clutch discs and plates. « Repair Manual Jaguar XJ6 XJ12 XJS 1975-77 Drive Axles. Most XJ6 models were Short Wheel Base versions but some like the Vanden Plas models were Long Wheel Base so the rear passengers had more leg room. The Series 3 XJ6 cars were fuel injected, had a Borg Warner automatic transmission, sliding sunroof panels, 2 fuel tanks, leather seats, and the regular standard options for cars in the 1980's.
- Jaguar Xj6 Differential Manual Transmission
- Jaguar Xjs Repair Manual Download
- Jaguar Xj6 Differential Manual Diagram
- 2000 Jaguar Xj8l Manual
- Jaguar Xjs Owners Manual
//JagWeb // XJ-SHelp //Contents //
RearSuspension/Differential Removal
It is discussed in the section coveringSteering &Suspension.
Differential
The XJ-S has apparently been fitted with at least three differentdifferentials ('final drive units' for you Brits).
Salisbury 4HU Powr-Lok
From 1976-1985, the differential was a Salisbury 4HU Powr-Lok thatcame with either 3.07:1, 3.31:1 (1976-1982), or 2.88:1 (1982-1985)ratios.
DANA
From 1985-1987, a 2.88:1 DANA unit was used. This unit can bedistinguished in that the bearings on the output shafts are held inplace with three bolts; the differentials both before and after theseyears have five bolts. It also has no drain plug.
Replacement Parts
When working on a DANA unit, you can get the seals from Jaguar,bearings from a local bearing house, and the clutches, shims, andthose silly little clutch retainers from any performance shop thathas access to Dana rear end parts. When ordering, they will usuallyask for a ring gear diameter and an 'axle' spline count.
Clutch Retainer Problems
Jaguar does not want to admit to the Dana as having ever existed.The problem is those 'silly little clutch retainers.' The Jaguar,with it's high weight and sticky tires, really hammers on theclutches, which eventually chew through the retainer. By design, thehalf retainer can't get out into the gears where they would do majordamage. But it does get pushed out the end of its access hole,mucking up the carrier bearings.
GKN Power Lock
Beginning in 1987, there was a differential referred to as the GKNPower Lock with a 2.88:1 ratio.
Jaguar Xj6 Differential Manual Transmission
Jaguar Diff Repair Procedure
Reportedly, the official Jaguar repair procedure for final driveunits is to replace them as a whole.
Limited Slip Diffs
Sony hi md music transfer 2.0 for mac. All XJ-S differentials are limited slip, and all the systemsoperate using essentially the same principle (a series of frictiondiscs, with the compressive load increasing through increased drivetorque) although the feature has often been given different names.
DANA LSD Replacement
The gears for the DANA Type 44 limited slip differential will fitin the Jaguar unit. This includes gears from many larger Americancars and small trucks. However, there are problems that must beovercome. First, the DANA ring gear will be threaded for smallerbolts than the Jaguar originals, so bushings will have to befabricated to make the smaller bolts fit snugly in the holes.
Second, the replacement pinion will not mate with the Jaguar inputflange, so a Chevy input yoke will have to be used. The Chevy yoke isthe type with U-bolts that retain the U-joint bearing caps directly,so the flange on the rear end of the drive shaft will need to beremoved. Since the Jaguar driveshaft uses standard Chevy U-joints,they will match up fine.
The salesman at QualityJaguar reports that while the DANA gears will work, they areconsidered inferior to the Jaguar parts. Specifically, they tend towhine more, and of course the smaller mounting bolts are not assturdy.
Differential Oil Change
Getting the fill plug out is no picnic. It has been suggested thatremoving the center reinforcing plate under the final drive unit (14bolts, 6 with nuts) may be worthwhile. Don't worry, the whole carwon't fall apart while the plate is out.
Many Jag owners suggest a length of plastic hose and a squeezebottle for topping up or filling up the final drive unit. The hoseshould be long enough to feed out the right side wheel well so theoil can flow downhill.
Fill Plug Access in Boot
Brian Sherwood points out that if you open the boot, remove thespare tire, and peel back the matting forward of the fuel pump, thereis a round metal plug; removal of this plug provides access to thefill plug on the differential.
I just popped it out with a screwdriver, did my lube thing,then pressed the plug back in with some RTV around the edge.
LSD Gear Oil Additive
Note that while the diff can be topped up with conventional gearoil, a drain and refill requires an additive for limited-slip units.
According to a salesman atQuality Jaguar, the XJ-Sfinal drive unit uses both natural leather and natural rubber seals.Therefore, synthetic lubricants are NOTrecommended. It is recommended that synthetics be avoided in thespecial additive as well.
Input Flange RetainingNut
The adventure of the speckled band pdf. It's a really big nut, obviously it should be tightened downreally tight, right? Wrong. This nut is used to set the preload onthe input shaft bearings. Between the bearings is a 'crush sleeve'and during assembly this nut is tightened just enough to provide theproper bearing preload while compressing this sleeve. If the nut isovertorqued, the entire final drive assembly must be torn down toinstall a new crush sleeve.
Differential OutputBearing Failure
One of the common failure modes of the Jaguar differential unit isthe failure of the bearings in the output shafts, possibly becausethese bearings take lateral loads imposed by the working of thesuspension. Whatever, the failure is usually indicated by clunks fromthe rear when driving or the tire rubbing the wheel well where itformerly had clearance.
Jaguar Xjs Repair Manual Download
Checking by grabbing the top of each rear wheel and shakingvigorously in and out clearly indicates a problem. Closer inspectionshows that the output shaft is free to move in and out, and the onlything limiting movement is the brake disk banging back and forthwithin the caliper!
According to Jan Wikström,
It's very likely that all you need to do is replace thebearings and seals. This is not difficult, but you'll need to takethe rear subframe off your car. You can do it from underneath, butthat probably takes longer because of the difficulty in getting thebrake calipers off and back on. Besides, taking out and dismantlingthe complete rear suspension gives you a great opportunity tocheck everything.
On to the Brakes
// Jaguar Xj6 Differential Manual Diagram
XJ6 – 69-73 (Series I)
Girling Callipers/1/2″ Rotors
Ball Bearing Stub Axles
3.54 Gears
61 3/4″ wide Ddx3216 software download.
Girling Callipers/1/2″ Rotors
Ball Bearing Stub Axles
3.54 Gears
61 3/4″ wide Ddx3216 software download.
XJ6 – 73-79 (Series II)
Girling Callipers and 1/2″ Rotors but with Odd dust Cover
Tapered roller bearings on Stub axles standard 3.31 gears with locker optional
61 3/4″ wide
Girling Callipers and 1/2″ Rotors but with Odd dust Cover
Tapered roller bearings on Stub axles standard 3.31 gears with locker optional
61 3/4″ wide
XJ6 – 79-88 (Series III)
Girling Callipers 1/2″ Rotors
Tapered roller bearings on stub axles with Drain hole in Stub axle flange
2.88 Gears Locker optional
61 3/4″ wide
Girling Callipers 1/2″ Rotors
Tapered roller bearings on stub axles with Drain hole in Stub axle flange
2.88 Gears Locker optional
61 3/4″ wide
XJ6/XJ40 – 88-95
Completely different set up, not recommended for aftermarket applications
Completely different set up, not recommended for aftermarket applications
XJS – 76-87
Girling Callipers 1/2″ Rotors
All Powerlock Gears
Tapered Roller Bearings on Stub axles
3.31 Gears
61 3/4″ wide
Girling Callipers 1/2″ Rotors
All Powerlock Gears
Tapered Roller Bearings on Stub axles
3.31 Gears
61 3/4″ wide
2000 Jaguar Xj8l Manual
XJS – 87-89
Girling Callipers 1/2″ Rotors
Flat bottom diff with NO drain plug and 3 bolt mounted stub axles
American Dana Unit with weak traction lock (Not recommended)
2.88 Gears
61 3/4″ wide
Girling Callipers 1/2″ Rotors
Flat bottom diff with NO drain plug and 3 bolt mounted stub axles
American Dana Unit with weak traction lock (Not recommended)
2.88 Gears
61 3/4″ wide
Jaguar Xjs Owners Manual
XJS – 89-95
Girling Callipers 1/2″ Rotors
ABS on uprights/speedo pickup in rear aluminum diff cover
2.88 Gears
61 3/4″ wide
Girling Callipers 1/2″ Rotors
ABS on uprights/speedo pickup in rear aluminum diff cover
2.88 Gears
61 3/4″ wide