Well OK, if you look at his adjuster bolts the left side rear one is all the way in so caster is maxed at that wheel and both sides is less than one degree. Where is the 7 degrees here?
It isn't there in its current configuration.
The whole thing was not assembled correctly to begin with. Every aftermarket tubular upper control arm out there is designed with an additional 3-4* of positive caster in them. With this built in improvement, the fact that they couldn't achieve even that amount means it was not put together correctly.
I'm willing to bet that achieving max positive caster was never a consideration during assembly because if it was, strut bushings, strut rod length, and lower control arm placement would have been forefront in consideration during assembly. Doing this and using offset bushing in stock control arms could easily get 3-4* positive. Swap to an aftermarket arm with an
extra 3-4*, and 7*
should be easily achievable.
Dialing in possible alignment numbers begins with the basic assembly of the suspension. Just like building horsepower begins with degreeing a cam to optimize valve events, so too should suspension be assembled with precision and forethought at the numbers to improve its performance.
