Retrofitting LSD into V6
#21
01-15-2015, 08:45 PM
Have a read here https://www.jaguarforums.com/forum/g...ids-sdd-77299/ it's for the earlier model cars but the same would apply.
Basically changing the diff ratio without adjusting the software throws the car into limp mode.
This would not be the case with the manual transmission though...
Basically changing the diff ratio without adjusting the software throws the car into limp mode.
This would not be the case with the manual transmission though...
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Foosh (01-15-2015)
#23
01-16-2015, 05:08 AM
Senior Member
Retro fitting e-diffs is a long discussed topic in the Land Rover Discovery world. No idea how much if any might apply to a Jag but if anyone is interested here is a link to a thread from someone who successfully did it.
Disco3Club The Discovery 3 and 4 Owners Club ? View topic - Locking Diff retro-fit
Disco3Club The Discovery 3 and 4 Owners Club ? View topic - Locking Diff retro-fit
#24
01-16-2015, 06:15 AM
The modern vehicles with manual transmissions that I am familar with have not needed any software changes if the diff ratio has been changed, but the automatic versions have needed this.
I think it's because the ratio's in the transmission are not fixed i.e. you can ride the clutch and change the effective ratio of every gear, so it's not something that is used to throw up codes or limp modes.
I think it's because the ratio's in the transmission are not fixed i.e. you can ride the clutch and change the effective ratio of every gear, so it's not something that is used to throw up codes or limp modes.
#25
01-17-2015, 03:05 AM
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Foosh (01-17-2015)
#26
05-04-2018, 04:47 PM
Junior Member
It's possible! LSD in a base F type!
6 weeks ago I had swapped the standard open Diff in my 2016 F type for the Diff from a V6s (as you guys described above). I was wary about the issues stated In the above thread and spoke in depth with a Jaguar specialist about the possibility of coding the car to a new diff ratio... The result was much simpler, a direct swap with no software updates - 1500miles later, there are no error codes or issues! I'll post if anything changes!
I have to say this modification has transformed the car, the high torque and stiff rear end made it handful in the wet and less stable at speed on windy roads. The car feels so much more predictable and composed - I'd recommend this to any base v6 owner that wants to push their car!
I have to say this modification has transformed the car, the high torque and stiff rear end made it handful in the wet and less stable at speed on windy roads. The car feels so much more predictable and composed - I'd recommend this to any base v6 owner that wants to push their car!
#28
05-13-2018, 08:19 PM
6 weeks ago I had swapped the standard open Diff in my 2016 F type for the Diff from a V6s (as you guys described above). I was wary about the issues stated In the above thread and spoke in depth with a Jaguar specialist about the possibility of coding the car to a new diff ratio... The result was much simpler, a direct swap with no software updates - 1500miles later, there are no error codes or issues! I'll post if anything changes!
I have to say this modification has transformed the car, the high torque and stiff rear end made it handful in the wet and less stable at speed on windy roads. The car feels so much more predictable and composed - I'd recommend this to any base v6 owner that wants to push their car!
I have to say this modification has transformed the car, the high torque and stiff rear end made it handful in the wet and less stable at speed on windy roads. The car feels so much more predictable and composed - I'd recommend this to any base v6 owner that wants to push their car!
#29
05-13-2018, 08:28 PM
In the meantime, I know of an XK that was fitted with a 3.58 in place of the original 3.31, and an XF that was fitted with 3.31 in place of the original 3.07, and no faults or limp mode.
On the XF it was reported that the traction control seemed to cut in a bit earlier, more aggressively than before. The guy with the XK drives it with the traction control off all the time so nothing noted there.
So small changes in ratios seem to fall within an allowable tolerance, the bigger jumps cause the problems.
On the XF it was reported that the traction control seemed to cut in a bit earlier, more aggressively than before. The guy with the XK drives it with the traction control off all the time so nothing noted there.
So small changes in ratios seem to fall within an allowable tolerance, the bigger jumps cause the problems.
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Panthro (05-18-2018)
#30
05-14-2018, 02:18 AM
Junior Member
I'm in the UK so it's in £...
£800 for the second hand diff from the V6s
£750 for fitting and 4 wheel alignment (as the rear sub frame has to be lowered from the car) this included a diff oil change, new seals and new drive shaft bolts for good measure)
Good to note that the LSD has different oil spec to the none LSD diff.
£800 for the second hand diff from the V6s
£750 for fitting and 4 wheel alignment (as the rear sub frame has to be lowered from the car) this included a diff oil change, new seals and new drive shaft bolts for good measure)
Good to note that the LSD has different oil spec to the none LSD diff.
#31
05-14-2018, 01:24 PM
Senior Member
In the meantime, I know of an XK that was fitted with a 3.58 in place of the original 3.31, and an XF that was fitted with 3.31 in place of the original 3.07, and no faults or limp mode.
On the XF it was reported that the traction control seemed to cut in a bit earlier, more aggressively than before. The guy with the XK drives it with the traction control off all the time so nothing noted there.
So small changes in ratios seem to fall within an allowable tolerance, the bigger jumps cause the problems.
On the XF it was reported that the traction control seemed to cut in a bit earlier, more aggressively than before. The guy with the XK drives it with the traction control off all the time so nothing noted there.
So small changes in ratios seem to fall within an allowable tolerance, the bigger jumps cause the problems.
So dropping the F-type V6S LSD into the V6 XE should be no problem.
#32
07-14-2019, 08:15 AM
#35
09-29-2021, 08:35 AM
Hi- sort of but not really. The LSD is sitting in a box. I have purchased a QuickJack, new axle seals, and am ready to take a shot at the install (along with the pulley). Now that the weather is cooling, I will be more interested in taking her off the road.
#37
09-29-2021, 06:37 PM
#40
09-29-2021, 07:34 PM
Senior Member
