The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

1969 GMC · 04-09-2007, 01:33 PM

What was the overall height of your tires before vs. with those rubber bands?

If it's no different, then it won't affect your overdrive.

If the wheel/tire combo is slightly larger, it will actually reduce your rpm on the highway. If they are smaller, it will increase your rpm.

EDIT: most important to remember, it doesn't matter what size rims you have. It's all about the overall height of the tire/rim combo.

04-09-2007, 01:33 PM	#2
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: would 23 kill my overdrive What was the overall height of your tires before vs. with those rubber bands? If it's no different, then it won't affect your overdrive. If the wheel/tire combo is slightly larger, it will actually reduce your rpm on the highway. If they are smaller, it will increase your rpm. EDIT: most important to remember, it doesn't matter what size rims you have. It's all about the overall height of the tire/rim combo. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650 Last edited by 1969 GMC; 04-09-2007 at 01:34 PM.