Help Identifying My Chassis

[rich56]

Have a 1956 F100 on a chevy frame, bought the truck little over a year ago, now lowering it, need to know exactly what I have to order spindles and other parts, past owner didn't know exactly what chassis it came from, looks like a C10 86 or 87 to me, it has leafs in the back, here are some photos, hopefully you guys can identify it for me, thanks Richie.

Just to add, the rotor measures 12" and is 1 1/4" thick.









Here is the truck, I know I know, it's a Ford, but chevy powered