my sep 94 built x300 sov has an horrendous handling problem
had front geometry set and is spot on,new shocks, track rod ends etc so seems all ok

at speeds over 60 mph the car feels vague,,especially from the rear

shocks on rear arent too old by looks of it black in colour with a gold label

slightest undulation in the road causes the backend to hop,,and at motorway speed the car gets "sucked in" by trucks and its all over the road in the wet,,scary

its on 20 spoke x300 wheels with 225 60 16 tyres ,but only budget brands

been told "trunnion bearings " or rear wishbone bushes

???

its so bad i no longer feel safe driving it although passes mot without a problem
help would be good for my future sanity
cheers

 

I'd start by checking the rear A frame bushes. That's large bushes just in front of the rear wheels where the rear sub-frame attaches to the body. These are a common failure point.

I would also check rear wheel bearings for excessive play - although if they were worn enough to cause the symptoms you describe I expect them to be making a lot of noise also.

Check also the rear hub bottom pivot bushes (where the lower wishbone arm connects to the hub). These can corrode and collapse.

Also, the bolt that holds the lower wishbone arm to the hub is a cam type that allows for adjustment of the rear toe. If some work has been done on the car and this was not marked before removal, or not checked afterwards that could cause a problem.

 

had a shake round
seems the rear trunnions in the back hub plate are shot..

is this enough to cause uncertain handling??

everything else seems ok,although the car has 190,000 miles