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