Norcal Dave My 51 6400 pickup is a used (hard) farm truck,no cream-puff in the front end parts. Do what I do,take 2 yardsticks measure your toe-in mid bulge of the tires. Shoot for no more than 1/4 inch less in front than in back. After this setting can run 50 on pretty good hard roads. No problem staying in my lane,comfortable to drive is 98 inch wheelbase.