I'm sorry, I wanted to highlight the non-skid strips on the ramp. You're right, the dolly isn't currently in the “load” mode, just sitting on the driveway.
Your LEGO block solution works for reducing the angle, the non skid strips help a lot in wet weather and if it's icy I use a heat gun before we load.
Loading on a slight downslope as somebody else mentioned also helps.
Sorry for the confusion.
Denny, Connie & Shadow (former barn cat made good)
2006 Tiffin Phaeton, Cat C7, Freightliner Chassis