I've have my da for 7-10 years now and the pad has ripped off of it. It's a model 875, I think. Does anyone know or has done it ? I would ask dears but I'm surprised those employees can make it to work.
I have replaced them on Claytons, IR's, Blue Points etc it can be done the biggest pain in the **** will be the wrench needed to hold the drive spindle so you can back the pad off. Check Sears Parts for a new pad and see if there is a special wrench for the drive spindle. You might be able to dummy one up out of flat stock if you can get an accurate size for the spindle nut.