xj8 2000 rumble rear end on uneven roads , not heard on even roads , have had underneath checked for any loose parts , not wheel noise , have checked boot spare seems fairly sound

 

Likely the upper and/or lower damper mounts. The upper foam isolators deteriorate. The lower 'spherical' mounts wear out and become noisey.

bob

 

For what Bob has notated for you, here is the exploded view along with encircled parts he is speaking of.

 

Hi seastreaker,

Welcome to the Jaguar Forums! It's great to have you with us.

Please visit the New Member Area - Intro a MUST and post a required introduction so we can learn something about you and your Jaguar and give you a proper welcome.

Cheers,

Don