1972 GMC Custom Camper Towing Capacity

[kamby]

I've been trying to find out what the towing capacity is on my 1972 GMC C2500 Super Custom, Custom Camper Pickup.

The rear end i found out is the 9 or 10 bolt, not sure if its the right one for the truck or not i know its not original as i found junkyard markings on it
(mileage and some other numbers)


As i dont have an owners manual for it, id like to get the towing capacity. i just cut the old hitch out that was welded to the frame, my draw bar wouldnt fit it, so i assumed it was a homemade class I hitch. I installed a class III on it with 6k ball tow, 8k weight distributing or something like that.

The heaviest item i have is a roughly 2500lb boat/trailer and soon hopefully a 1800lb rated utility trailer about 300lb dry weight. But in the future i may want to tow more weight like a 20+ foot camper or 5th wheel...

Thanks for the help, oh and where can i find an owners manual like the one youd get from the dealer.