Didn't know you could get to them through the backing plate. the "approved" method is to measure the ID of the drum and the OD of the shoe. I forget what the difference is supposed to be. I just turn them up until it's a little tricky to get the disk on and that usually works.
The Constitution needs to be re-read, not re-written!
If you can't handle Dr. Seuss, how will you handle real life?
Current oil burners: MB GLK250 BlueTEC, John Deere X758
New ride: MB GLS450 - most stately
Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510