most bonk noises i have run into are usually suspension related to
bottoming out.  on a synchro i would not just be looking at your shocks
but the top where the spring plate is to see if you havent rusted out
or punched through. (you should have seen the strut sticking up through
the back of my jetta rear  shelf)
On Friday, Oct 11, 2002, at 17:20 America/Denver, Clive Smith wrote:

> Suspension boffs please - can you answer this...
>
> recently I've twice had occasion to find myself sorta stranded with
> one the rear wheel off the ground, due
>
> a) having removed my syncros driveshaft
> b) truning sharp on an incline or upa kerb/ramp
>
> ...looking round I see a wheel is jacked up off the ground.
> Whilst I know the rear suspension has somewhat limited articulation,
> is this typical, common normal and is there any possibility that
> soemthing is making it worse e.g. shock absorber, cvj. especially as
> theres an occasional 'bonking'noise formt the rear over rough ground
> or going downhill.
>
> Thanks,
>
> Clive
> '88 Syncro Transporter
>