Gee it seems , And I may be wrong, i any one mention adjusting?
That is one of the biggest causes of situations I have had over 25,000 on different units.
Get to a safe spot, jack up right at the axle and spring and use a large screw driver or brake adjuster tool from an auto store. READ up on how to.
IT works set them as tight as possible then back off till you can hear the shoe just rub, try it on all wheels.
Then go for a ride, if they are too tight, re adjust a bit lighter. BUT evenly all around.
Good luck.
Chuck
