I just purchased A set of 35x13.50x20 ProComp's off of a friend of a friend and I would like to know If anyone knows what size of lift kit I need to make them work? I have heard eveything from just a 2" spacer on the front to a 4" on the front and a 2" on the back. The rims are KMC XD Series Rockstars 20x10's. I know the back spacing is right because they came off an 06 2500 4x4 I have an 06 2500 TRX4 edition Cummins 4x4!

 

Theyll fit fine with 2" springs/spacer to level it out...

Ill be putting some 35s on my stock rims in the next few months, bought some 2" taller superlift springs off a buddy of mine...
Ill be replacing the shocks as well(stockers arent that great anyway)
Probably some ranchos, well see about the new blistens coming out though...

You could also put a 4-4.5" lift on it, just to clear a little more if you go offroading more, or if you need room for articulation...


Just make sure you upgrade steering components up front(track bar being 1)
Also check ball joints, U joints for wear before going larger, putting more stress on parts...