I have been plagued by upper and lower bushes failing every 6-8 months but only on n/s/r fitted exactly the same as o/s/r and had no trouble with this side ever problem continued after changing shocks.
The only thing I can think of is everytime it moves off the drive the n/s/r rides on the kerb edge and drops off thumping down onto the road is this the cause or something else?.

Crap materials being used to make the bushes ??