Wifey wants added shoulder strap seatbelts

[88Ironduke]

Need some help here. My wife has refused to ride in my truck (some might think this is good) if I don't add shoulder seat belts to all three seats on my bench seat.....

My 72 fleet side came with lap belts only and I would like to add shoulder straps for added safety that is relevant to what GM has been using thru the 80's and 90's. My truck has two points in the B pillars (up high and down at the floor) for passenger and driver shoulder straps but there is obviously nothing for the center passenger on my bench other than lap belt.

For the passenger and drivers side, can I pull from a late 80's/90's Chevy or GMC and bolt the assembly up or do I need to fab up custom brackets. Options for center seat belts? Any info is appreciated before I go junk yard shopping.

Thanks
88Ironduke