Help Clueless on Backspacing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

IndyRich · 01-17-2011, 04:42 AM

I have a bone stock 1972 LWB 1/2 ton 402BB GMC rear leaf spring. It currently has 5 on 5 15" wheels, but I covet some torq thrust 17".(unless someone has a better suggestion.)

Can someone who knows what they are talking about explain this to me? I have seen charts and it is like chineese to me....backspacing, centerline, offset......I don't know.

I've been a Jeep guy a long time and only dealt in wheel size and tire size, never backspacing. HELP! Thanks in advance.

01-17-2011, 04:42 AM	#1
IndyRich Registered User Join Date: Feb 2009 Location: Indianapolis, IN Posts: 372	Help Clueless on Backspacing I have a bone stock 1972 LWB 1/2 ton 402BB GMC rear leaf spring. It currently has 5 on 5 15" wheels, but I covet some torq thrust 17".(unless someone has a better suggestion.) Can someone who knows what they are talking about explain this to me? I have seen charts and it is like chineese to me....backspacing, centerline, offset......I don't know. I've been a Jeep guy a long time and only dealt in wheel size and tire size, never backspacing. HELP! Thanks in advance.



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