I have an '86 Westy (full camper).

I loaded up the van with everything I normally take on a trip, plus,
gasoline, propane and water.
I had the vehicle weighed and following are the results...

Front   960kg 2120 lbs
Rear    900kg 1980 lbs

Basically I have a 50/50 F/R weight distribution.

I am running General Altimax RT tires
205/70 R14 98T XL.

My door sticker states that for 205/70 R14 97 tires, the pressures should be
30/40 psi.

Using these pressures I find the front tires seem underinflated and the
rears over. I am experimenting with 40 psi front and rear or 35 psi front
and rear.

Being a camper, I don't expect to put any great weight in the van over what
it weighs now.

Does anyone have any comment or similar experience?

D