greetings. while i was walking to my car today, i noticed just behind and rearward of the rear brake rotor, a suspension assembly part, thinn rod going to center of car, rubber bushings at the outboard side, just aft of the rotor. what is it and what does it do? i looked at the assembl, looks like a big bolt and nut holding a set of rubber bushings and another metal rod. can i replace these by them selves or are they part of a more complicated assembly? appears that i can easily get to it if i remove the rear wheel first. any information is appreciated. wm

 

Sounds like a anti-rollbar link. Easily replaceable as a separate part.

 

just the bushings or the whole thing? any thoughts on polyurethane bushings vs rubber? TIA, wm

 

1st it's best if you provide pics of the component in question!
2nd poly (sports) bushings are difficult to find for the jaguar models; you would have to obtain exact circumference specs then attempt to do a best match / fit! These are NOT BMW's where these types of replacement bushings are commonly available.
I assume YOU ARE familiar with the Removal & Pressing processes and have the proper tools (& a lift) available hand BEFORE you attempt to do so!
Depending on the actual component(s) you are referencing, don't forget the possibility / probability of an alignment upon completion else the offset will transfer uneven wear to other locations & your tires.
And as a matter of habit I would recommend component(s) servicing in sets (L&R) to ensure a evenly distributed life cycle.... (saves time & money in the long run).

Be certain to order OEM replacement parts & save yourself the headache