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Originally Posted by 54warrior
Someone correct me if I'm wrong, but there is no caster adjustment on the Titan. Only toe/camber. Caster is the relationship between the top and bottom ball joint, and there really is no way (that I'm aware of) to adjust that. Certainly with the 'built-in' slop that Nissan made on the lower control arms, there will be slight caster change if/when the lower arms were to move fore/aft. In order to change caster, the location of the upper or lower ball joint would have to change.
More caster = better high speed handling
Less caster = better slow speed handling (twitchy at high speeds)
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More caster, heavier steering, better "return to center feel" after turning, better tracking. I was thinking there was an adjustment with the lift kit that was installed?? Tell ya the truth, I only had to adjust the toe after I installed my leveling kit.
On many vehicles, you can adjust the upper or lower control arm (pivot) front to rear via cam bolts, etc. Again, I've never aligned my Titan (let alone installed a lift kit) so I'm not sure whats there. On my GM there are cam bolts that let you move the front of the upper arm different from the rear of the upper control arm, in effect changing the ball joint center line. Kinda like the "old" RWD cars with shims. Same theory. Move the front of the arm outward & the rear of the arm inward (via shims or cam bolts) evenly increasing caster while not changing camber. Moving unevenly will cause camber to change also.