Caster is fixed. The plates only allow for camber adjustment and as always, toe is adjustable via the tie rods.
With 7+ degrees of positive caster, the S550 is pretty well off. The range sucked on earlier Mustangs such as the Fox chassis that would kill to even attain half that.
With an aftermarket plate like Vorshlag, it’s adjustable, but the factory plates are camber only. Even the Vorshlag plates only give you +1 degree or factory.
As my base car didn’t come with camber plates I opted for Vorshlag for the added range of adjustability.
Camber/toe is infinitely more valuable on these cars.
It looks like the Base and the CFTP cars have a different caster. Would the spring height affect caster or is one of the suspension parts different?
Alignment Specifications
NOTE: Measurements listed at curb load. Curb load is defined as "full service fluids, full fuel tank(s),
no passengers and no cargo".
Earl, spring height absolutely has an impact on measured caster numbers. There is a direct correlation between spring height/ride height and the differing caster numbers you quoted.