I have a 09 Sierra 1500 half ton that has rear drum brakes, real bummer in my opinion. The VortecMax option trucks have the 9.5 inch rear with discs but all other half ton trucks are stuck with drums. If I can get a rear from the similar body style Tahoe or Suburban, can I use this for donor parts to convert my truck? Has anyone here successfully swapped the rear 10 bolt from drum to disc brakes? Will I run into any ABS issues or similar?