Rear Tires Suddenly Lock Up Going 65

I'd love to throw in an overdrive. Road trips would be fun.

It's not a strut bar, there is nothing dragging or making noise, unless it ripped off but I didn't feel anything like that.

I would also think rearend and maybe brakes. If it had just been one wheel I would have thought about the strut bar coming out and getting between the shoes and drum.

"one wheel"