Re: Towing capability
I thought the GMC 1500 series was 3/4 ton. But even if it is, pulling 14,000 lbs uphill with a 305 would be a very slow process. My 1500, that I am sure is rated at 3/4 ton, needs downshifting to get up some California hills without a load, and spends most of the time in third (counting the granny as 1) when going uphill with any sort of load. If your toy hauler is a trailer (not 5th wheel, which I have not seen behind these old trucks) there is another potential problem. Where the bumper with its hitch plate is welded to the frame might not be heavy enough metal to pull such a big a load. At least that is what the welding shop told me when I put a 2" receiver on the old truck to pull a horse trailer - this is not a problem with the bumper, but how it is attached to the frame.
JRMunn
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