The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Spare tire mount on 1979 GMC 35 Crew Dually

tucsonjwt · 04-30-2015, 03:57 PM

I mounted my spare with the outside face facing down, so I could access the tire valve to check the air pressure. Mine is a C20 but I don't see why it would not work with a C30. I moved my pivot bolt ahead about 1.5" so the tire would clear the trailer hitch.

04-30-2015, 03:57 PM	#3
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,198	Re: Spare tire mount on 1979 GMC 35 Crew Dually I mounted my spare with the outside face facing down, so I could access the tire valve to check the air pressure. Mine is a C20 but I don't see why it would not work with a C30. I moved my pivot bolt ahead about 1.5" so the tire would clear the trailer hitch.