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RustyPile · 01-17-2022, 05:21 PM

Those big rims with lots of back space were to allow the truck to run on RR tracks.. The truck probably never had bumpers. Special hydraulic raised and lowered "guide" wheels were installed in place of the bumpers.

01-17-2022, 05:21 PM	#9
RustyPile Registered User Join Date: Dec 2017 Location: Elkhart, Texas Posts: 1,582	Re: Unique 68 GMC Those big rims with lots of back space were to allow the truck to run on RR tracks.. The truck probably never had bumpers. Special hydraulic raised and lowered "guide" wheels were installed in place of the bumpers.