[mark houghton]

Originally Posted by Alan L

Mark - why didn't you get the tools out over winter and get stuck in?? Sounds like a camber adjustment on rear. They are simple - spirit level. Chock it out as necessary at bottom for the fenders, then measure the gap at the top to rim (when level). Compare to good side. You have camber adjust in the spring plates. I have a screw adjust on my spirit level (home made) and can set at any required angle - simple Trig calcs. The heater may be frozen cables.
Shame on you :-)
Great that you are enjoying the beast.
Regards
Alan

Thanks for the friendly jab! Just lazy is all. You're right, probably too much negative camber on the right rear, thereby wearing the inner edge of the tire. Have never messed with alignment, kind of scares me I guess, and not sure I follow your directions. Sounds simple but will need to do some research. Tires aren't cheap nor readily available in these stock sizes so I should get off my lazy ass and dig in to it.
The heater is secondary. I suspect frozen cables most likely; the boxes themselves seem free to move.