When I had my tires replaced at a commercial large truck and trailer tire shop they requested that I disconnect the weight distribution system. Did that and they went right to work. I did not disconnect the hitch from the ball. This is the shop that most of the local RV dealerships have do their suspensions and tire work.
WBCCI 10656 Southeastern Camping Unit
Associate European Unit
2006 Safari LS 23 ft
Formerly 1964 Bambi II
"I got a fever and the only prescription is more cowbell"