What backspacing is needed on 20's? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GreyHoundSteve · 12-23-2004, 02:59 PM

I am looking for rims for my truck and i was wondering what i need to look for when buying rims? I guess all GM 6 lug paterns are the same right? If i have front disc and rear drum brakes and 2 1/2 dropped spindals on a 4/6 drop and want to run 20's with 40 series sidewall tires then how wide of rims can i go and what backspacing is needed? Is there anything else im forgetting? I'd like to run 20x8 in front and 20x10 in back but dont want any rub ever, is this possible?

12-23-2004, 02:59 PM	#1
GreyHoundSteve Registered User Join Date: Oct 2004 Location: DFW TX Posts: 769	What backspacing is needed on 20's? I am looking for rims for my truck and i was wondering what i need to look for when buying rims? I guess all GM 6 lug paterns are the same right? If i have front disc and rear drum brakes and 2 1/2 dropped spindals on a 4/6 drop and want to run 20's with 40 series sidewall tires then how wide of rims can i go and what backspacing is needed? Is there anything else im forgetting? I'd like to run 20x8 in front and 20x10 in back but dont want any rub ever, is this possible?

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