Not sure if anybody has experience with these guys....
part numbers for 80-81 FLT is 47553-79
part number for 82-84 FLT and FXR is 47564-82

I think some aftermarket say they fit 80-84 5 speed rubber mounted frames.

I have an 83 FXR... I don't think I need new ones, but since I am rebuilding a lot of stuff, I was thinking about replacing them. the problem is the correct ones are about $100 the pair... the early ones are likr $25.

Does anybody know what the difference is? They changed again later on on 86 I think.