Kwikee step replacement

After dressing the wire bundle, a little job the factory failed to do at Fleetwood, and regular maintenance, my Kwikee 2 step unit performed well up until the bolts holding it to the frame of the RV rusted through. Even then, after the strain from 3 broken bolts (out of 4) and the step frame dangling, only had to replace one broken gear housing screw and straighten out the gear box lid.

I was kind of impressed with that 23 year old mechanical and electrical design.

I wonder if the OPs step mechanical actuators are somehow misaligned by an incorrect installation...missing spacer or something...that causes undue strain on the mechanism?