one temporary measure that might help, is to switch OD off at the start of those little inclines.
My own 08JK with same gearing pulled various 'slight inclines' with the original Dueler tires. Just changing to the same circumference traction tire (OK, they were 1/2" more, but still sub-33") dropped my RPM enough that the tranny wasn't happy at the same speed.
I found pushing the OD button at the right places did wonders for my own sense of 'uninterrupted forward motion'.
get in--buckle up--hang on
"soothing agricultural implement/personal servant/Walter Mitty multidimensional access utility device conveniently travels on pavement when necessary and often keeps me warm/cool/dry/soothed as needed."