2012 37f Adventurer weight distribution

As far as the wind goes....you're driving a SHOE BOX!!

If you have the exact 4 point weighing you can use part 3 of my MotorhomeRV tirepressurecalculator, to be found in next map on my skydrive.
Click RIGHT and choose download.

But you write a 1000 lbs weightdifference R/L. Was this measured on one axle or devided over front and back together?
Already saw 3 times that for example front L had more weight then R, and behind R more weight the left, wich makes weightdifference of the total vehicle smaller.
If you then would level the car, the compensation of the torsion is brought back to zero and the weightdiffences will be getting more.

Your tire pressures should be adjusted to your wheel weights (ideally) or at least your axle weights. Get your coach on a truck scale at least get your axle weights. Use the tire charts from your tire maker to get the correct inflation pressure, add 5% for side to side variance and go with that pressure.

Handlling in cross winds isn't easy for any motorhome unless you have a tag axle coach. Suspension upgrades may or may not help. Improper tire pressures will certainly not help handling and it easy to check and correct.

I own a 04 36' Adventurer and I had to do the opposite of what you did on tire pressure! Lower tire pressure was causing too much flex (Michelin on there website calls it tire squirm) and it was causing me handling problems while driving. If anyone doesn't understand this the tires have a slight bulge in them. And lower tire pressure causes more heat build up in a tire according to Michelins tire website. I'm glad it works for you! I was running 85 lbs. in the rear my tire shop had me change tire pressure to 100 lbs. all around and that really worked for my coach. Good Luck with your tire pressures.

Assume you mean that tire pressure was adjusted based on the heavier wheel position on each axle with all tires on an axle getting the same PSI.

What upgrades did you do?