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  1. Join Date
    Feb 2009
    Posts
    5,167
    #61
    To provide road crown compensation for countries that drive on the right side(u.s., philippines, Canada, most of Europe and general counties, caster on the left is set less positive than the right or if it is easier, to set the left front tire more positive camber than the right. In the seventies where most cars were solid axle rear wheel drive, we were only concerned with the front wheels. hence, we only had front wheel alignment. then came IFS(independent front suspension) and IRS(independent rear suspension, axles had so much variance and periodically had to be checked and adjusted. the seventies we had no rear toe adjustments. and definitely did not consider thrust angle alignment. newer computerized wheel alignment equipment more than likely don't measure front wheel setback which also contributes to drifting or a slight pull to either side.

  2. Join Date
    Jan 2025
    Posts
    44
    #62
    Quote Originally Posted by jick.cejoco View Post
    To provide road crown compensation for countries that drive on the right side(u.s., philippines, Canada, most of Europe and general counties, caster on the left is set less positive than the right or if it is easier, to set the left front tire more positive camber than the right. In the seventies where most cars were solid axle rear wheel drive, we were only concerned with the front wheels. hence, we only had front wheel alignment. then came IFS(independent front suspension) and IRS(independent rear suspension, axles had so much variance and periodically had to be checked and adjusted. the seventies we had no rear toe adjustments. and definitely did not consider thrust angle alignment. newer computerized wheel alignment equipment more than likely don't measure front wheel setback which also contributes to drifting or a slight pull to either side.
    I understand why Caster and Camber are set that way, but as I said, on any car I own, I request equal left and right.

    My car has an amazing feature for keeping straight in its lane: Me, the driver! ;)

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Wheel Alignment