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Drivetrain - 2001 - 2010 Discuss front and rear axle, transfer case, brakes, etc. Transmission questions belong in the appropriate transmission forum below. First through fourth generation... is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
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Old 04-08-2009, 10:38 PM   #1 (permalink)
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parking brake adjustment tool

My parking brake needs adjustment. While it was up on the lift a while back and I noticed the drivers side rear wheel had adjustment access hole below the axle and it is accessible. The passenger side hole is above the axle and is not accessible with a standard adjustment tool. Is there a special tool for adjusting that side of the parking brake?
03 Chevy 3500 LT DRW D/A CC LB 4x4
03 Lance 1130
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Old 04-09-2009, 12:22 PM   #2 (permalink)
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The actual procedure in the manual tells you to pull the rotor and use a large caliper to measure the inside of the drum of the rotor and the outside widest part of the park brake shoes.

The only other thing I can think of is to try and get in there with a small pick tool from the outside.
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Old 04-09-2009, 01:45 PM   #3 (permalink)
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FWIW, I have been told that there not adjustable without pulling them a part.
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Old 04-09-2009, 03:03 PM   #4 (permalink)
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Yes they are through the slot in the backing plate VIA the star wheel. You really need a offset adjustment tool to get to them. If your lucky you just need to take the slack out of the cable by pushing the pedal to the floor 3 times it will do the rest.
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Old 04-09-2009, 04:23 PM   #5 (permalink)
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Thanks for the replies. I'll probably have to get in there and take a look.
03 Chevy 3500 LT DRW D/A CC LB 4x4
03 Lance 1130

Last edited by h45wt; 04-09-2009 at 04:24 PM.
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Old 04-09-2009, 05:53 PM   #6 (permalink)
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did mine couple of months ago with axle seals. I adjusted the high side with a long thin screw driver and a droplight to see wtf was goin on. 2500hd ALOT easier than 3500 dually. Know its tough but be patient. BTW stupid local dealer told me not at all adjustable,wheel seals went bad i opened it up and seen star wheel and plastic plug. Not sure if axle (hub)seals are reusable........ four times ive removed hub the seals fell apart. good luck!!!!!
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Old 04-10-2009, 12:32 AM   #7 (permalink)
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go to NAPA and ask for a "BRAKE SPOON" for adjusting drum brakes. should be like $8 or $10

go any where else and they will look at you like you have two heads.
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Old 04-11-2009, 10:49 PM   #8 (permalink)
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Here's some adjusting info I added at post #8:
emergency brake adjustment

The adjusting tools are cheap, buy a couple of different ones to find one that works.

As for the large factory caliper, (maybe a OTC or Kent Moore), this is manufactured where you measure your brake drum I.D. and lock tool, and O.D. on this tool is slightly smaller than the I.D. to give proper clearance. New it cost about $100.

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Last edited by modified; 04-11-2009 at 10:50 PM.
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