My XJ6 has 185,000 km on the clock. Looks like the shocks are original.and very rusty. I went down a few roads lately with potholes and now I have a metallic cackling sound.
I am assuming the shocks are due for replacing. (The top of the front shocks reveal orange bushings that are degraded.)

Recommended shock brand? Reasonably priced...

Thanks

 

The originals are Billsteins B4 rating for the VDP as softer

Some other contributors will come up with brand recommendations.

Bilstein old catalogue coming up as a reference.

The upper shock isolators #s are here as item # 8

Genuine Road Spring And Damper-front For Jaguar Xj 1995 - 1997 (from 720125 To 812255) Classic | Jaguar Land Rover Classic Parts

MMD2144AA times 4

The lower shock bushing is here as item # 13

Genuine Wishbone-upper And Lower For Jaguar Xj 1995 - 1997 (from 720125 To 812255) Classic | Jaguar Land Rover Classic Parts

CAC75851 times 2