How I adjust rear drum brakes [message #209319] |
Thu, 30 May 2013 16:17 |
C Boyd
Messages: 2629 Registered: April 2006
Karma: 18
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I just did mine so thought I would share. Properly adjusted and balanced rear brakes are a must. I adjust brakes the way I was taught for the old big trucks. Tighten adjuster all the way (up) hard, this centers the shoes in the drum. Loosen the shoe (down) till the drum rings tapping it with the adjuster tool, no contact. Then tighten 1 (up) click at a time till the drum rings everywhere except one little "thunk" spot. They will be one. The wheel will roll free and the brakes are right there.
http://www.gmcmhphotos.com/photos/misc.php?action=orderphotos&s=&cat=6385
C. Boyd
76 Crestmont
East Tennessee
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Re: How I adjust rear drum brakes [message #209326 is a reply to message #209323] |
Thu, 30 May 2013 17:31 |
C Boyd
Messages: 2629 Registered: April 2006
Karma: 18
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Sir: Its kinda limited to a couple trips around the big block and local parking lot testing. It did take a few good hard stops to get everstuff bedden in and brakeing got better with each stop. Now Braking effort is easier and stopping distance shorter. As Matt said "carlike". So far I`m impressed and will let you know more when I get back from Hamilton rally. Hope to leave in the morning. Tom Pryor loaned me his tool he had at Bean Station to drill the rear spindles for a grease fitting in the end. With my front zerts I can now repack all wheel bearings without removing the wheels. I did notice after hand packing the wheel bgs and installing, then filling thru the grease fitting the bgs got quieter. Valvoline molly blend. Thanks Tom.
A Hamilto wrote on Thu, 30 May 2013 17:36 | If that is your GMC that you are adjusting in the pictures, what are your observations of the drum brake reaction arm performance?
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C. Boyd
76 Crestmont
East Tennessee
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Re: How I adjust rear drum brakes [message #209351 is a reply to message #209333] |
Thu, 30 May 2013 21:20 |
C Boyd
Messages: 2629 Registered: April 2006
Karma: 18
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Senior Member |
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Matt: I`m looking forward to it.
Interesting, Isn't It?
Somehow I think we are going to be doing a little bench racing tomorrow.
Matt - Ready to cast off with the morning tide
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C. Boyd
76 Crestmont
East Tennessee
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Re: [GMCnet] How I adjust rear drum brakes [message #209404 is a reply to message #209380] |
Fri, 31 May 2013 10:01 |
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Matt Colie
Messages: 8547 Registered: March 2007 Location: S.E. Michigan
Karma: 7
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Senior Member |
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jtblank wrote on Fri, 31 May 2013 04:52 | Up is tight
down is loose
Just remember uptight or down and loose.
The same on both sides
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The pther point to remember is that if you have working adjusters then the wheel only goes one way until you stick in the long screwdriver to push the little arm back..
Matt - uinderway to the Work Rally at the Miller's
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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