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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | this - ".... turn up a top hat-looking adaptor. Now blue the spindle end, let it dry and fit the rotor on the spindle." in - http://www.stovebolt.com/techtips/discbrakes.htmleaves me scratching my head. 'turn up', as in, on a lathe? 'blue the spindle end'? is there a more detailed version somewhere, or is this process only intended for adults? | | | | | Joined: Feb 2001 Posts: 1,094 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,094 | Adults only, I think that tip was written by a Fellow that doesn't come around here anymore. Jim Profitt, I remember reading about it years ago and think it was a little more involved than that.Yes it did mean on a lathe, and the blue was to mark the spindle. The blue is used by machinists to mark things.
Wonder what ever happened to Jim?
Tommy
59 apache 1/2t
261 short stepside
| | | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | yeah, i kinda thought that was the blue he was talking about
too bad he's not around, bec he really meant, 'Well, hang on...
so now that my interest is piqued, i'll have to go and find a cheap way to experiment | | | | | Joined: Feb 2000 Posts: 5,197 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,197 | I believe he is talking about a spacer he made that resembles a top hat. And blueing the spindle is a machinist die used for marking on steel, very similar to magic marker only liquid. He used the die on the spindle, then slide the hub on so he could mark where the bearings and nut would be. Then he threaded the spindle up to the mark.
My disk brake kit from Master Power Brakes, uses a Ford inner bearing and Chevy outer bearing with a top hat looking adapter/spacer that slipped on the spindle. The seal and inner bearing rides on this adapter while the outer Chevy bearing fits just a normal bearing would. The top hat spacer positioned the hub forward enough that the stock threads and lock nut worked as intended. A adapter/spacer is required due to the spindle diameter, bearing race diameter, and availability of bearings with in those measurements. Even though mine uses Ford and Chevy bearings, they both are common sizes and can be bought at any parts store, same for the seal. With out this interchange, special parts would be needed and the cost would rise dramatically and you would be limited to where you get replacement parts.
Joe | | |
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