Drive train questions
#1
Drive train questions
I have not found to much info on the XK/XKR drive train but from some of the posts it has tweaked my interest. All of the jags I have had had a 2 piece drive shaft with an independent rear suspension and a limited slip differential. Also the rear brakes were inboard. I would have thought that as the XJ-s evolved into the XK series there would be improvement to this design. As I understand it they still use a 2 piece drive shaft but I am unsure of what type of rear suspension and do all XK/XKR have limited slip rears. I see it seems all ar running a 3:31 rear gear set which with a 6 speed should be the best of 2 worlds. As a little background which may be sacrilege to some here after a 100K and a burnt valve on my XJ-s I pulled the V-12 and Corvette TPI V8 with a worked 4 speed auto. I used a 1 piece aluminum drive shaft which in my opinion should have been done in the orig. design. Now that I'm older my retrofit days are over but I still enjoy wrenching or programming the newer cars.
#2
Limited slip wasn't offered on the XK Series until 2010, and then only on the XKR/RS models. I don't know the driveshaft details...and curious why anyone would even care for that matter. But I can tell you that it works very, very well...and noone seems to be having a problem with there's on this forum
#3
From the workshop manual:
The driveshaft consists of the following components:
The driveshaft's front tube is of a swaged construction, designed to collapse in a controlled manner in the event of the vehicle being involved in a front-end collision. Low-friction splines at the center of the driveshaft provide the driveshaft's plunge capability.
A flexible coupling is used to connect the driveshaft assembly to the transmission, allowing for angular movement of the drive shafts due to acceleration and braking. The center universal joint is lubricated during manufacture and sealed for life. This joint is positioned to a specified angle using shims between the center bearing and the body.
- A two-piece welded steel tube with a splined center slip joint.
- One universal joint.
- A center bearing.
- A flexible joint and a plunging joint.
The driveshaft's front tube is of a swaged construction, designed to collapse in a controlled manner in the event of the vehicle being involved in a front-end collision. Low-friction splines at the center of the driveshaft provide the driveshaft's plunge capability.
A flexible coupling is used to connect the driveshaft assembly to the transmission, allowing for angular movement of the drive shafts due to acceleration and braking. The center universal joint is lubricated during manufacture and sealed for life. This joint is positioned to a specified angle using shims between the center bearing and the body.
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jagtoes (09-28-2013)
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