[SCOTI]

I agree w/a disclaimer....

Aftermarket arms were originally made w/the same specs as OE stuff but carried the hefty price tag. Guys can now shop smart & get arms w/performance benefits OE arms can't match (additional caster, better camber curve, wheel base change). So not all arms are equal; some are just OE replacement, some offer improvements.

Same thing w/aftermarket truck arms. The orignal units worked because of their materials & construction. Aftermarket tubular arms came out @ higher costs & w/less deflection because of materials & construction. But, that deflection is kind of needed to minimize binding (because of those materials & contruction methods). It took a while for someone to come along, listen, & build T/A's that minimized deflection w/o sacrificing articulation. Again... not all aftermarket T/A's are equal.