i too have an old XXX-t MF1 truck. i have found that for my track (loamy when dry) that step pins in the rear work good. i run 30 F, 35 R shock oil, pink F, orange R springs, 1*camber F, 2* camber rear, stock shock locations, stock shock pistons, the front sets level with the rear and the rear dogbones are level, not the arms. i run a 10x2 orion mod motor, w/ 88/17 gearing and IB 4200's.