Hi all,

I do not own an XF, rather an 04 XJ. There is a discussion over in the x350 forum as to whether or not the top strut bearing from an XF will fit onto an x350.

https://www.jaguarforums.com/forum/x...e-drop-171990/

As you may know, our XJ's have air suspension, and removing them for a more cost effective coilover setup is becoming more popular as our old parts wear out. I'm wondering if it's feasible to build your own using S Type struts and springs, and an XF strut plate.

I don't have access to an XF, so my question is, can one of you XF owners be kind enough to measure the distance between the bolts on your strut plates? If the 4 bolts are labeled in a clockwise fashion as A,B,C and D, I'd like measurements from bolt A to bolt B, from bolt B to bolt C, and bolt A to bolt C.

The x350 measurements are as follows:
A to B=3 5/16 inches
B to C=2 3/4 inches
A to C=4 5/16 inches

Attached are pics of what I'd like, though it's dark so not sure how much you can see. Under the hood should be easy...if the rear struts are accessible that would be awesome, though I would think they measure the same.

Thank you!

 

Sorry chillyphilly,

I've got mine accessible at the moment, and on my 2010 XF Supercharged (with adaptive suspension, in case that matters) the bolts appear to be mounted in a square with distances of approximately 2 11/16 inches x 3 1/8 inches between them.

 

Wow, thanks for the quick reply! That's why I love this forum, everyone is so helpful. So to clarify (not that it matters too much as it sounds like it's not even close), but for future reference, the XF front strut mounts are as follows:

A to B= 2 11/16
B to C= 2 11/16
A to C= 3 1/8

Or are you saying:

A to B= 2 11/16
B to C= 3 1/8
A to C= unknown

 

Sorry, I should've been clearer - the second option. I've just measured A to C and it's approximately 3 15/16 inches

 

Thank you so much for taking the time to measure them so quickly, davetibbs. It's clear they will not work without drilling the XJ's mounting points, which means if one wanted to use a coilover setup from another car and drill to make them fit, it would make sense to use the S Types full setup as the rest of the components are known to fit.

Thanks again!

 

No problem! Hope you get something sorted. I wonder if you can mix and match parts from different setups (e.g. XJ strut plate, XF strut?).

 

That is the idea. One member here has fitted S Type R coilover assembly (with CATS) to his x350, and another has fitted the base S Type coilovers to his. Both required drilling the x350's aluminum mounting point to fit the S Type's strut bolts through.

I was hoping you could use the S Type strut, H and R drop springs (again for the S Type), and then use a top plate like the XF that would directly bolt in with no modification. The stock strut plates on the x350 AFAIK are integrated in to the air shock, and even if they weren't, they are quite a bit different than the coilover top plate type.