Previous vehicle HDJ79R had a difference of 25mm between front and rear track width, steered well on gravel and heavy corrugations. Drove a V8 powered 79 series on the same rough road, very hard to maintain directional authority, as it 'snake tracked' down the road. V8 was carrying similar load to older 6 cyl model, similar tyres and pressures. Later measured the front and rear track width and noted a difference of 95mm. Any one else had similar problems?