3/4 ton has rear axle under the springs. 3/4 ton also has front caster shims that have a larger angle than the 3100 shims (if you're looking for more caster).

Last edited by Norcal Dave; 12/15/2017 4:17 PM.
~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission