The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Rear coilover kits and tire size limitations?

siggyfreud · 08-31-2019, 03:27 PM

Alright, did some measuring with the wheel tool and some tires. I'll be giving GoMobileTiresPDX a better plug in a video later, but the owner was super cool and helpful, and their setup was incredibly clean. Their mount systems are touchless on the wheel, which is nice.

Anyways, looks like I can do a 20x11 - 315/35R20 with about a 6.75" BS on all 4 corners. In the fronts, it cleared the LCA fine, but the tire did rub the shock at full lock right turn. But, when I go to a coil-over setup in the future I won't have that issue, and for now, I just have to remember at full lock I'll get some rubbing, which will, fortunately, be low-speed which I can avoid.

I can see where an 18x11 wouldn't have cleared the front LCA though, as I have about 1.25" of clearance likely just due to the wider diameter wheel size.

08-31-2019, 03:27 PM	#20
siggyfreud Registered User Join Date: Jun 2012 Location: Portland Posts: 1,334	Re: Rear coilover kits and tire size limitations? Alright, did some measuring with the wheel tool and some tires. I'll be giving GoMobileTiresPDX a better plug in a video later, but the owner was super cool and helpful, and their setup was incredibly clean. Their mount systems are touchless on the wheel, which is nice. Anyways, looks like I can do a 20x11 - 315/35R20 with about a 6.75" BS on all 4 corners. In the fronts, it cleared the LCA fine, but the tire did rub the shock at full lock right turn. But, when I go to a coil-over setup in the future I won't have that issue, and for now, I just have to remember at full lock I'll get some rubbing, which will, fortunately, be low-speed which I can avoid. I can see where an 18x11 wouldn't have cleared the front LCA though, as I have about 1.25" of clearance likely just due to the wider diameter wheel size. __________________ Current Build - Project "Ghost of Poseidon" 72 C10 Pro-touring build Previous Build - 66 GMC Pro-touring build. Sold.