Question about 2004 GMC Sierra 2500

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I need to remove the brake drum on a 1976 gmc sierra 25

The drum will not tap lose(after removing the tire) there are 8 bolts in the center of the lug nut plate, do those need to come off or is there a retaingnig bolt on the back side of the drum, or do i just need a bigger hammer?

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  • ronrad Jan 29, 2009

    rejakwilson was right the brake drum is attacted to the axel so they come out as a unit.was just unclear if i needed to remove the 8 bolts in the center. The larger hammer was a joke!

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1976 3/4 ton GMC Correct? I believe this is a Old Dana 60 rear Axel. So The Bolts in center you take Out , Smack the Center of the Axel to remove the AXEL SHAFT . Now what you see is nut LOCK RING & 1 more Nut. First Look for Steal Tabs Folded Over towards Outside on flat side of Large Nut. With Hammer & chisel Tap these TABS Over Flat 2-5 of then Remove Large Nut you can do this With hammer and chisel, as they are not Very Tight take off first nut that LOCKING TAB WASHER then the 2nd Nut and Drum is Free Bearings and All. REVERSE PROCEDURE FOR INSTALL Only First NUT after outer Bearing is WHEEL BEARING PRELOAD Tighten it down so as for it NOT to Have ANY Play or Movement and Keeping in Mind that You Need OIL Clearance It Should spin Very Easy But Have NO Moement check this with a LONG Prybar Placing the tip Under Tire and Pulling up on it to Listen And FEEL For LOOSENESSJust Snug that tire on with 2-3 Lugs this Preload is CRUCIAL Too tight 2 Blocks is when it will BURN those Bearings up and may LOCK up Wheel other than that Preload you Ues Silacone Sealant on SUPER CLEAN Surfaces of Exel & HUB Dont get it in Bolt Holes go around em.
I Dont Have Books Or any referances here to go by that Go that Far Back so This Is Off the Cuff so if My Memory serves me well You ARE IN Buisness If Not Get A BIGGER HAMMER lol. But I Do think this will help you out just Fine Have A Good One Now and dont forget to rate me Please,
RejakWilson

Posted on Jan 29, 2009

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Soak it with generous amounts penetrating oil around the lugs and let it sit for a while and soak it again and hit it with a bigger hammer. There arent any hidden bolts they are just stubborn sometimes (most of the time).

Posted on Jan 29, 2009

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How do I remove the brake drums


How to Replace a Brake Drum
(DIY Complexity: Moderate / Time: 2.1 hours)

Parts:
1. Brake Drum

Tools:
1. Jack Stand Set
2. Mallet Hammer
3. Flat Head Screwdriver
4. Floor Jack
5. Combination Wrench Set
6. 3/8 in. Drive Ratchet
7. Tire Iron
8. Socket Set

Supplies:
1. Brake Cleaner

Steps:
Step 1 Secure the vehicle on a level surface, making sure the vehicle will not roll or lean when jacked up.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.

Step 2 Remove the rear wheel hub caps (if necessary) to gain access to the lug nuts. Using a tire iron or lug nut wrench, break loose the rear wheel lug nuts but do not remove.
o Tip: Turn the lug nuts counter clockwise to loosen. If the lug nuts are too tight, use a breaker to gain more leverage.

Step 3 Using a floor jack, lift up the rear of the vehicle.
o Tip: Using an aftermarket floor jack, instead of the original equipment (OE) jack, can make the job easier and safer. Verify the condition of the floor jack before use.

Step 4 Secure the vehicle with jack stands on both sides for safety before starting any work. The pinch welds or the frame rails are the two best locations. Do not rely on the jack to hold the vehicle up while working.
o Tip: Try to find a flat, level, and strong surface to put the jack stands.

Step 5 Remove the lug nuts. Remove the rear wheels.

Step 6 Remove the brake drum by pulling it outwards.
o Tip: Make sure the parking brake is released before removing the brake drum.

Step 7 Visually inspect the brake drum for cracking, scoring or grooving. If any of these conditions are found, the brake drum will need to be resurfaced or replaced.

Step 8 Visually inspect the brake shoe linings and drum brake components for damage or wear.

Step 9 Replace worn components if necessary.

Step 10 Install the new or resurfaced brake drum.

Step 11 Reinstall the wheel. Torque the lug nuts to the manufacturer’s specification.

Step 12 Remove the rubber grommet from the backing plate. Insert a screw driver into the slot and turn the star wheel adjuster to adjust the brake shoes out.
o Tip: Turn the star wheel adjuster until you feel a slight drag while spinning the wheel.

Step 13 Road test the vehicle.

Hope this help.

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1 Answer

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Hope this helps.
Good luck,

Removal & Installation


  1. Remove the hub cap and loosen the lug nuts.
  2. Raise the rear of the vehicle and support it on jackstands.
  3. Remove the lug nuts, tire and wheel.
  4. Release the parking brake.
  5. Pull the brake drum from the hub. If difficult to remove try the following:
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    2. Install 2, M8x1.25mm bolts into the holes in the drum and gradually tighten them to pull the drum off the hub.



  6. 0900c152801a5f72.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Install and tighten 2 bolts to remove a stubborn brake drum

To install:
  1. Install the brake drum to the hub.
  2. Install the wheel.
  3. Remove the jackstands and lower the vehicle.
  4. Road-test the vehicle to ensure that the brakes are working properly.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the brake fluid, as necessary.
  3. Release the parking brake.
  4. Raise the vehicle and support safely.
  5. Remove the tire and wheel assembly.
  6. Pull the brake drum from the hub. If difficult to remove try the following:
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    2. Install 2, M8x1.25mm bolts into the holes in the drum and gradually tighten them to pull the drum off the hub.

      0900c152801a5f72.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Install and tighten 2 bolts to remove a stubborn brake drum

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