Brake issues

the only thing i can conjure up right now, is that if there is a ridge along the outer edge, what would be a typical wear ridge, the brake shoe maybe is "climbing" that ridge and snaping back?

maybe that slight difference, is causing a pull?

i have had brake shoes "sing" inside of drums, when the drums were not machined on the final cut, as the rough cut, left what looked like a phonograph record..

that created what we used to call "singing brakes"...

and then when the brakes were released, they SNAPED BACK, instead of pulled back by the return springs.

it could also be, remanufactured shoes, that were made originally in 2 different countries, so the metal shoe part is just slightly wider?

that's all i got for now

 

From the looks of the axle, you're shoes are probably caked and embedded with whatever that material is. Try washing everything with a good, strong soap, I use Awesome, its an acidic solution, it comes with a sprayer and you can buy quart refills, a $ at the $ store. Good luck. Oh yeah grease everything right after you wash, it should push out Any dirt around the camshaft, I wouldn't doubt if they're hanging up with all that muck.

 

From the looks of it, I'd say that fitting hasn't seen a grease gun in ages.

OP, you might want to have a chat with the shop about that. Unless if course you just recently ran through that muck.

 

Your shop needs to at a minimum, flip your shoes (swap top and bottom). The reason your brakes are jerking you to the left or right is because the s-cam roller in has worn one side of the cradle in the shoe. Swapping the shoes top to bottom will get the roller to push on the unworn side of the cradle.

As for your shoe pushing out of the drum..... it’s hard to say without having it in front of me, but I would check wheel bearing torque first. If that checks out I would remove the drum and measure it. I would be looking for drum swell ( inner measurement of drum is smaller than outer lip measurement). It could also be there is something slightly wrong with the shoe pivot pins, but like a i said, it’s hard to find any of it for sure from pictures