The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 Frame Shortening on a '50 1-1/2 ton?

wolmic · 01-03-2001, 09:05 AM

I have a friend that did this on his 51 3/4 ton. He just lopped off the frame right behind the cab. Then you need to get a piece of steel(at least as thick as the frame) bent to fit the inside of the frame rail(basically a 6-8 inch piece of smaller frame). Weld around the whole piece. This will give plenty of strength and still have plenty of flex. Some articles I have seen doing this also suggest making a Z cut in the frame instead of a strait cut. I guess thats so when welded back it is stronger in their opinion. I don't think it makes that much difference.

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54 GMC

01-03-2001, 09:05 AM	#2
wolmic Registered User Join Date: Jan 2001 Posts: 1	I have a friend that did this on his 51 3/4 ton. He just lopped off the frame right behind the cab. Then you need to get a piece of steel(at least as thick as the frame) bent to fit the inside of the frame rail(basically a 6-8 inch piece of smaller frame). Weld around the whole piece. This will give plenty of strength and still have plenty of flex. Some articles I have seen doing this also suggest making a Z cut in the frame instead of a strait cut. I guess thats so when welded back it is stronger in their opinion. I don't think it makes that much difference. ------------------ 54 GMC __________________ 54 GMC