The Stovebolt Site Forums The Shop Area Driveline Stuck rear brake drums

I'm trying to remove the rear brake drums on 52 3/4 ton. I cut the frozen parking brake lines thinking that would at least release the parking brake but don't think it had any affect. I tried getting into the wheel cylinders from the back but am not having any luck. A lot of the teeth on front cylinder were gone but I don't know what condition the rear is like. Any other ways to approach this?
Thanks

When I had stuck drums I attacked them with a drum puller and a big hammer. I used the puller to apply pressure and tapped the edges of the drum from one side than the other to slowly "walk" the drum off the pads. If you can also get a pry bar in there slowly lever the drum away from the backing plate. If the brakes are that frozen you will most likely need to replace all of the springs inside so don't be afraid to bend or break them. You might be able to grind or cut the studs for the locating springs on the back of the backing plate. Good luck!

Silly question but you did remove the screws that hold them on from the front?

If the drums are that bad, get new ones and fire up the grinder

Do the drums rotate? If so, your main problem is to separate them from the hub. There are two screws that hold the drum against the hub. If you can't get them out, driill the head out and leave them there. They are not really needed. You need to smack the drum where it rests on the hub, with a good hammer. You will see clouds of rust start to form and you will be able to see slight movement at the drum surface at the axle. Once you can actually feel some movement, pull on the drum while tapping the edges. Although some of the vendors list new drums for the 3/4, I would be very careful until you find out if they are in fact available. If it was a 1 Ton, you would not be able to buy a new drum for sure.

When I got my 54 3600 it has set for 10 year and everything was stuck. I drug the truck to get the brake shoes loose. The drums were also stuck, so soaked the nut and drum with WD40 for a couple of weeks. Put a wheel puller on the drum and wacked it with a 2 pound sledge and they pupped loose. As a side issue the 54 year old drums were junk and needed be replaced.