Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
12-22-2016, 04:20 PM | #1 |
Senior Member
Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,766
|
14 bolt initial brake adjustment ???
First off, congrats to 66chevymax --nice truck-- and all my fellow competitors for 2016 TOTY.
I thank all who voted and for allowing me my TOTM. Now here is my question. I have a GM 14 bolt SRM from a 74-75 C20 RWD. Ring gear was dated dec 73. I am refreshing it with brakes and seals and my question is what --if needed -- is the initial adjustment of the brake shoes? It has no hole in the backing plates --nor indent for one-- but the drums do show a location --kind of a knockout. 1) Do I adjust them kinda with drum only? Drum is inside of hub --11 x 2 3/4 brakes --apart now --drums were turned off hubs. And then use the backup brake procedure for adjusting them later? 2) Or should I drill out the drum location and cleanup with a carbide die grinder for a slot --I have 2 rubber plugs. If I make a drum slot hole it would be on the wrong side of the adjuster arm. 3) Or make a slot in the backing plate?
__________________
1942 Chevy 1/2 ton Rod, 1959 GMC 1/2 ton Fleet Stepside, 1967 Chevy SWB K10, 1985 Corvette Coupe 4+3, 2015 Chevy Duramax reg cab 4WD W/T |
12-22-2016, 05:47 PM | #2 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,433
|
Re: 14 bolt initial brake adjustment ???
I always make a slot in the backing plate. The spring kits come with a rubber plug, so it makes it easier to plug the hole afterwards
|
12-24-2016, 07:22 PM | #3 |
Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: 14 bolt initial brake adjustment ???
My 68 had never had a brake job so the drums all had the knockout on the outer edge. I just knocked both of them out on each drum.
Clean and check the back plate really well and see if you can detect a knockout on the rear app. where the star adjuster is located. I adjust mine so they barely rub/touch when I rotate the drum. Sometimes I adjust them out until they're tight and back off to barely rubbing.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
Bookmarks |
|
|