Always when unhitched. Storage is flat so i just do one side but at camping site both sides get chocked. I know it's overkill but I use 12" 6x6 blocks. I needed them a few times on spots that were not level side to side and needed to stack 3 level...
Same truck as yours. At about 160K a ring broke in the overdrive unit and cut a groove in the overdrive gear. Got it replaced but could never get all the fine metal out. It finally started collecting on the solenoids so I had the tranny rebuilt lo...
1 year into owning our 2015 Cougar 303RLS. No major problems so far with about 1300 miles on it, would have more but work decided different. use for us is about 4-5 nights each trip nothing close to full time but we enjoy it. did about a 4 hour pd...