Juddering forester

[sawman]

went to test drive a an automatic subaru forester turbo the other day, it seemed to work fine until slow speed full lock turn when a juddering occurred, for some reason it had winter tyres on and I wondered if this could be a cause. but I wonder if there could be a differential issue, it went fine on the straight and was fine around roundabout (except for the winter tires screaming!)

any thoughts?

[ScoobieWRX]

Make sure you have the same profile and size tyres all round and no mixed sizes on one axle. Different diameter tyres on either axle could cause your juddering although the odd 4x4 i've driven does this juddering thing on full lock and i've put it down to a diff or drive shaft issue.

[FlatPack]

Find another one. The centre 'diff' (ok not really a diff in the autos) is screwed in some way, sometimes they can be fixed cheaply and easily and sometimes not. Not worth the risk.