Need some pointers on this 67

[rwlfnsh0406]

HERE IS THE DEAL I BOUGHT THIS TRUCK WITH OUT KNOW ANYTHING ABOUT THE TRUCK. THIS IS A 1967 GMC SHORT BED, IT HAS LEAF SPRINGS IN THE REAR AND 5 LUG WHEELS ALL THE WAY AROUND AND DISK BRAKES UP FRONT AND DRUMS IN THE REAR....IS THIS FACTORY SUSPENSION AND LUG PATTERN FOR THIS TRUCK??? JUST FOR ALL OF YOU WHO KNOW THESE'S TRUCKS UNLIKE ME WHAT WOULD THIS BE WORTH IS HAS A FAIRLY NEW PAINT JOB ON MAYBE 5 YRS OLD AND IS VERY STRAIGHT WITH A MILD 355 THAT RUNS GREAT, RUNS DRIVES AND STOPS WELL.
I WILL POST MORE PICTURES UP OF IT AS I DROP IT AND GET WHEELS ON IT ANY INFORMATION WOULD BE GREAT THANKS EVERYONE