It'd be interesting to see someone mod the damper location on a '90> GQ from the panhard to the original '88-'89 position on the LHS chassis.
I've never had the DW and the big grey hasn't been all renewed until 3 months ago. My tyres are 4yo 35" and haven't been rebalanced, one lower bearing was rusty and I had removed two shim pairs, wheel bearing and stub axle needed replacing and original steering gear (other than tierods) and radius arm bushes with 5yo offsets for the 2" lift. Now if that's not a candidate for play I dunno what is but she doesn't even shimmy let alone DW.
The '88-'89 had the following differences to later and were recalled to fit a brace on the panhard /steering box chassis mount:
Shorter steering box arm
Different (faster) steering ratio
Damper to LHS chassis not panhard
In my mind damper mounting to the panhard is a fault and a deviation from the original template of the GQ.
Point A: If you think about the suspended square component on the radius arm frame in it's entitety, there's one non rubber dampened connection point on the '90> GQ- the steering drag link all alone.
Point B: Also the steering drag link and panhard mounting points cross themselves- not ideal in my mind, if the geometry is that the panhard supports the drag link there will be an element of difference forces during the arc of each component here.
We have a spare recall cage and are considering mounting it up to the cheeky'lil'sister 92 Mav and remount the damper. I'll post up results here if it ever gets done