Suspension ride height and other issues - advice please

[goltho]

This morning using borrowed NASA-based holographic technology (wifey ), I managed to read the white label. This has unearthed some further info. I've reviewed everything we've got so far which I hope will refocus the issues.

Facts established
The car was fitted new with:
• J RPD000240 self-levelling rear dampers
• RH Blue/Brown RKB000370 rear springs
• PT/JT Purple/Brown front springs (REB000480) and dampers (RNB000400/410)

Rear issues
Wheel-to-wing height is 20mm high @ 420mm
Bang when weight fully comes off nearside (main suspect is damper)

I know the following:
a) rear offside spring replaced in 2014 (so will assume both sides were)
b) OEM dampers were self-levelling

I do not know the following:
a) rear dampers still OEM self-levelling
b) replacement rear springs are OEM
c) what the effect is of fitting too-soft springs to self-levelling dampers (force the high ride height?)

Front issues
Wheel-to-wing height is 11mm low @ 389mm
Mid-undertray ground clearance is 65mm low @ 90mm

I know the following:
a) front springs are new ECP aftermarket Anschlers (https://www.eurocarparts.com/search/627750291)

I don't know the following:
a) whether or not I renewed the dampers with the rest of the suspension in October (I've forgotten, plonker )

Need to check whether:
a) rear springs are correct spec
b) rear dampers are correct sec
c) front dampers are correct spec
d) rear spring insulators are correct spec

Any issues I've missed?

Dougie.