I dont know off hand...but i just came up with this idea called trial and error...put a heavy load on it, drive it, and if you break something youll know next time the tow rating should be a little bit lower :flipoff2:
My Dad owned a 77 Jimmy w/400/TH350. Had plenty of power, but the short wheelbase hampered stability on mountain curves and the half ton semi-floater axles couldn't handle long term the tongue weight of a 24 ft rec trailer. Good truck for towing lightweight trailers like small boats, pick-up boxes, atv/snowmobile trailers, etc.
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