1/2 ton 3/4 ton ?

[Pyrotechnic]

Big 10 or Heavy Half models got bigger brakes and longer rear leaf springs. The longer springs give a sweet ride if you take a couple of leafs out, and if you want to run drop shackles, you don't have to cut the bed support because the rear spring hanger is back further than with regular half ton springs. Also, these trucks got whats called "heavy duty emissions" which means minimal emissions, no catalytic converter and a double hump crossmember that works great for true dual exhaust.