Lowering 620 truck: coilovers?

[Desmond]

I just want to know if there are already coilover packages or if someone has already made an adaptation to be able to lowering and know what would be an ideal tire and rim size

[datzenmike]

Coil on shock would work but the torsion bars are adjustable anyway so why re-invent the wheel??? Again, as the truck lowers the camber goes crazy. There are drop spindles that move the spindle position higher effectively lowering the body without upsetting the suspension geometry.

 

For the rear just use drop blocks. Cheap, easy and effective.