gerritson Posted January 2, 2009 Report Posted January 2, 2009 I was inspired by DanOlson's disc brake conversion so I did my own on my 1 ton front axle. I used Dakota 6 bolt discs and gm calipers. I made my adapters (1/2" thick plates) on a CNC milling machine to match the old backing plate bolt pattern. I separated the drums from the hubs and machined some of the casting out-of-round off the back of the hubs. I made a 1" spacer to match the hub and the disc. The rivets on the rim rubbed the calipers so I milled some clearance on them. I also had to move the valve stem. I will try to figure out how to use the digital camera and post some pictures soon. Quote
bach4660 Posted January 3, 2009 Report Posted January 3, 2009 sounds good, I look forward to seeing the pictures. Quote
DanOlson Posted January 4, 2009 Report Posted January 4, 2009 Sounds great. Must be nice to have a CNC machine at your disposal. My wife would never see me. Dan Quote
ChrisCoccia Posted January 6, 2009 Report Posted January 6, 2009 I would love to see pictures-I'd like to do that on my B1D. Quote
gerritson Posted January 7, 2009 Author Report Posted January 7, 2009 I think you should be able to check out my pictures of the brakes from this link. Quote
Guest Kuster13 Posted January 7, 2009 Report Posted January 7, 2009 Nice work! Does the disc bolt onto the modified hub? Thanks for posting the pic's. Tom Quote
gerritson Posted January 8, 2009 Author Report Posted January 8, 2009 The disc is a plain style (no bearings) with a 6 bolt 4.5" pattern. It is bolted to the spacer with 6 socket head cap screws ( 1/2"-NF x 1"). The spacer is fastened to the hub with the press-in wheel bolts. I rotated the angle of the caliper to clear the steering arm. This style of modification keeps all of the original bearings, seals and wheel spacing and could be converted back to original drums with no retro-fitting. I have also made new mounting blocks for the back of the front springs and a new stainless steel battery tray as per the originals. It is great to be able to use all of my employer's facilities at no charge and I live just one block from work. Gerritson Quote
TexasHM Posted September 16, 2009 Report Posted September 16, 2009 (edited) I plan to be doing the same conversion soon. Can you pm me more details as in which GM calipers you used and maybe a drawing of the adapters? I can do it myself, but it'll save a ton of time. Thanks. Mike Edited September 27, 2009 by Griffin47 Quote
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