The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-59 Lower control arm touching rotor.

**mr48chev** · 03-14-2021, 09:27 PM

After looking at your photos a bit more and taking the liberty of putting them upright it looks like the big issue may be that lip on the inside of the rotor. There is no reason for that lip to be there and if you bought a stock rotor it wouldn't be there.

It would cost a few bucks to fix someone else's mistake but I'd take the rotors off and haul to someone with a brake lathe or lathe and have those ridges cut off. The only time you usually see a ridge like that is on rotors with a lot of miles on them that the pads have worn the rotor down (usually several sets of pads) and the rotors were never turned.

03-14-2021, 09:27 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,817	Re: Lower control arm touching rotor. After looking at your photos a bit more and taking the liberty of putting them upright it looks like the big issue may be that lip on the inside of the rotor. There is no reason for that lip to be there and if you bought a stock rotor it wouldn't be there. It would cost a few bucks to fix someone else's mistake but I'd take the rotors off and haul to someone with a brake lathe or lathe and have those ridges cut off. The only time you usually see a ridge like that is on rotors with a lot of miles on them that the pads have worn the rotor down (usually several sets of pads) and the rotors were never turned. Attached Images __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.