Hi, I purchased a 1956 Chevy 3600 pickup and was wondering how I could tell what donor car type was used for the subframe that was done years ago to the truck. The previous owner didn't know but thought it was possibly from a late 80's early 90's full size pickup. It has manual disc brakes on the front, the wheel bolt pattern is 5 - 5 which does point to possibly a truck but just want to be sure. Looking at getting some drop spindles to lower the front but need this info to get the proper ones. Also would help for the front springs and shocks also. Any help is appreciated !