| Re: [GMCnet] One-ton front caliper has been rubbing on disk [message #325757 is a reply to message #325756] |
Sat, 04 November 2017 14:20   |
powerjon
Messages: 2446
Registered: January 2004
Karma:
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Senior Member |
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Bruce,
Grind for clearance plus .020 and you should be just fine. 0.050 to .060 is not going to weaken the mount.
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 30’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
> On Nov 4, 2017, at 2:29 PM, Bruce Hislop wrote:
>
> While flushing and bleeding my brakes, I broke the siezed front passenger bleeder off. I had kept all the part numbers from when I did the one-ton
> upgrade, so I got another Raybestos FRC4417 caliper. When I pulled the old caliper, I noticed the disk edge had been rubbing on the caliper. It
> touches at the last inch or so on each end of the caliper, there is plenty of clearance in the middle. The worse area is 0.038" deep.
> Question is, should I grind out this area on the new caliper (would this weaken the caliper?). Or should I just let the new one wear in like the old
> one did?.
>
> Posted some photos:
> http://www.gmcmhphotos.com/photos/g7108-calipers-rubbing-on-disk.html
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
> Hubler 1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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