Abstract: A hub and suspension assembly for tow dolly and car hauler trailer with drop-down capability comprises: a suspension tower, a screw, a chuck, a lug member, an upper threaded block, a spring, a lower non-threaded block, an axle, and a hub. The tow dolly comprises: a plurality of frame members, a first and a second hub and suspension assembly for tow dolly and car hauler trailer with drop-down capability, and a first and a second wheel and tire assembly. Car hauler trailer comprises: a plurality of frame members; a first, second, third, and fourth hub and suspension assembly for a tow dolly and a car hauler trailer with drop-down capability; and a first, second, third, and fourth wheel and tire assembly.

Abstract: Hub and suspension assembly for tow dolly and car hauler trailer with drop-down capability comprises: a suspension tower, a screw, a chuck, a lug member, an upper threaded block, a spring, a lower non-threaded block, an axle, and a hub. Tow dolly comprises: a plurality of frame members, a first and second hub and suspension assembly for tow dolly and car hauler trailer with drop-down capability, and a first and second wheel and tire assembly. Car hauler trailer comprises: a plurality of frame members; a first, second, third, and fourth hub and suspension assembly for tow dolly and car hauler trailer with drop-down capability; and a first, second, third, and fourth wheel and tire assembly.