The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - True C5 Rear Disc w/ internal parking brake in the works

87chevy.com · 08-06-2010, 05:31 PM

Well, I my digital caliper doesnt read past 6.0" so I couldnt measure the O.D. of the axle. I could measure the O.D. of the axles register and that was around 3.08. Due to the studs installed onthe axle prevented me from getting a accurate measurement.
The rear C5 rotor modifed to fit another rear end application, doesnt quite fit this axles register. The register was opened to 3.063 (the 1980ish 12bolt register measured around 3.08). So I am going to order a set of A/C delco rootrs later on today. Should have the calipers Wedensday, Rotors on Thursday, and maybe I can have the machine work done Friday? I will take the axle and rotor down to a machine shop and see what it would cost to machine the rotor to the axle. I Think maching the rotor to fit the axle is better because the way the inside of the rotor is machined. The mounting pad of the axle flange would have to be about 6" roughly 1/2
smaller in diameter from original to fit the inside of a stock rotor.

clint

08-06-2010, 05:31 PM	#13
87chevy.com BMW & ASE Master Certified Join Date: Feb 2004 Location: Houston, Texas Posts: 1,256	Re: True C5 Rear Disc w/ internal parking brake in the works Well, I my digital caliper doesnt read past 6.0" so I couldnt measure the O.D. of the axle. I could measure the O.D. of the axles register and that was around 3.08. Due to the studs installed onthe axle prevented me from getting a accurate measurement. The rear C5 rotor modifed to fit another rear end application, doesnt quite fit this axles register. The register was opened to 3.063 (the 1980ish 12bolt register measured around 3.08). So I am going to order a set of A/C delco rootrs later on today. Should have the calipers Wedensday, Rotors on Thursday, and maybe I can have the machine work done Friday? I will take the axle and rotor down to a machine shop and see what it would cost to machine the rotor to the axle. I Think maching the rotor to fit the axle is better because the way the inside of the rotor is machined. The mounting pad of the axle flange would have to be about 6" roughly 1/2 smaller in diameter from original to fit the inside of a stock rotor. clint __________________ 1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress Last edited by 87chevy.com; 08-06-2010 at 07:06 PM.