Forces on frame w/WDH on a grade

daystrom wrote:
I have an Equal-i-zer brand hitch with 1,200/12,000 lb bars.

My trailer's tongue is 1000 lbs loaded weighed using the bathroom scale method.

I have to back into my driveway when storing the trailer. My driveway has a slight incline from the street and then it levels out.

My question is what kind of forces are going on to the frame of the trailer and/or truck when the trailer is going up the incline while the truck is still somewhat level?

My thinking is the spring bars are lifting the rear of the truck up until it levels out.

I guess I'm just wondering if I have too much force on something while backing up with the potential of breaking something? While backing up I would say the amount of time the greatest force is applied is only in the order of 10-20 seconds.

Thanks!
Todd

IMHO this is no different than going down the road and into a parking lot etc. with a slope or going from flat ground to a hill when towing. So unless you unhook for this, why unhook when backing into the driveway??

NOW I will say DO NOT try to unhook or hookup the spring bars when the trailer and TV aren't on the same plane!! Yes, the forces do go up and even with the tongue jack all the way up it may still have signficant force on the bars. Unhook/hook on "flat" ground.