Motor homes
There are those who claim lifting the front tires off the ground will damage the suspension.. This is Male Bovine Produced Organic Fertilizer (BS) as the suspension system won't have any issues with it unless the suspension is worn beyond need for replacement.
HOWEVER only one tire not both Reason follows
And on the rear.. Most Motor homes use drive shaft parking brakes So if one wheel is off the ground there is no parking brake as that wheel can turn freely.
So if you have both front, (or one rear) wheel off the ground and there is a "Stiff breeze" say 80-100 MPH (Been there 4 down) You may get blown away.
IN fact it it would take a whole lot less than 80mph. as little as 5-10 can do it.
Trailers... No parking brakes so the above does not apply
BUT I'd still not want to have both sides off the ground as.. Well.. the jacks are not really designed for that kind of support and it's way to easy to pretzel them.
