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DBear · 09-10-2011, 03:11 AM

Well, I measured the Widow-Makers that came on my 66 c15 I just got, and the backspacing is 4 1/2 inches, but not sure they were the factory correct rims for the GMC that year. Not sure how wide they are...was figuring about 5 or 6 inch rims. I picked some 8 lug 16 x 6.5 Stellies to replace those widow makers. I just dropped them off at the powder-coat shop to get them done in satin Black...close to the factory color I think. Most GM 8 lug 16's should fit for you....not sure what year mine are. I think most Dodge 8 lug steelies will work as well.

09-10-2011, 03:11 AM	#3
DBear Registered User Join Date: Nov 2008 Location: Rowlett, TX Posts: 867	Re: Factory 3/4 ton Backspacing? Well, I measured the Widow-Makers that came on my 66 c15 I just got, and the backspacing is 4 1/2 inches, but not sure they were the factory correct rims for the GMC that year. Not sure how wide they are...was figuring about 5 or 6 inch rims. I picked some 8 lug 16 x 6.5 Stellies to replace those widow makers. I just dropped them off at the powder-coat shop to get them done in satin Black...close to the factory color I think. Most GM 8 lug 16's should fit for you....not sure what year mine are. I think most Dodge 8 lug steelies will work as well.