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**kwmech** · 02-01-2022, 04:39 PM

They came with 3.73, 4.10 or 4.56. Tires came as a 215/75r-16 or a 235/85r-16. 235s are preferred as they are 31.5'' tall. Lowered dually in MA will be fun in the winter

02-01-2022, 04:39 PM	#8
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,399	Re: 1979 3+3 GMC Dually They came with 3.73, 4.10 or 4.56. Tires came as a 215/75r-16 or a 235/85r-16. 235s are preferred as they are 31.5'' tall. Lowered dually in MA will be fun in the winter