like apples and oranges
there are massive differences in chassis parts
the tubing quality
wall thickness and material type as well as the weld type and weld quality
it really makes a broad market when you consider all the possibilities
mild steel 1018 or choromoly 4130 thin wall or thick
tig welded or mig
DOM tubing or standed electro welded tubing
its not a place to skimp on quality when your ass is on that machine and you will be depending on the product not to break