Re: Ford E-Series Alignment Questions
First, is your van a stock 2WD Ford?
Second, what are the symptoms you are trying to correct?
When we build custom off-road suspensions we usually build in at least 6 degrees of caster.
When we build out Twin-traction Beam 4X4 conversions, we build in 6 degrees of Caster with a Zero alignment cam in the beams. Alignment cams of up to 2.5 degrees are available (about $25 each) and they will effect both caster and camber so additional adjustment is available.
When we do our basic 2WD ride leveling kit (raises the front 1.5 to 2.25 inches depending on weight of van) we can usually get camber and caster set with an alignment cam change only. If additional caster change is needed we either modify the radius arms or build custom radius arms. Additional camber requires modifying the I-beam. All of this is very straight forward and done all of the time.
Regarding the post from the other forum, it is a little simplistic to state that adding caster will fix everything they stated. What adding caster does is makes the tires want to return to center (straight ahead) but it also increases steering effort. Think of riding a bicycle or motorcycle with extended "chopper" forks - hard to turn and wants to return to center.
Four time Baja 1000 winner, four time Baja 500 winner. Solo'ed the Baja 1000 to LaPaz/Cabo twice.
4-Wheeling since 1972, Desert Racing since 1989.