RoyB wrote:
I guess adding the STEEL ROLLERS on the rear frame wouldn't help any??

I have seen similar steel rollers added under utility trailers.

Roy Ken
Hi Roy. That one is a pretty good choice. Looks like its a little on the "ight Duty Side". I for sure think it would work on your Tent Trailer very well.
I have a faily "Steep Drive-Way" on our back Drive-Way. Its all been Black-Toped. And the "Actual Pad for the Motorhome" is Cement, and it also has a "Retainer Wall" on three side of the RV Port.
I have, and I use 6 inch "Skid_Whells on our Motorhome. I also kind of have a double wammy. As the slop of the Drive-Way stops right at the begging of the Cement, which then perfectly flattens out, which causes a nasty Low-Spot,entering into the RV Port. I have to take it very, very slowly.
The Opening of the RV Port is 13 Feet High, and our Motorhome is only 11ft 6 inches. You'd think it would be plenty of clearance. When I break the Crest it actually lifts the rear of the Motorhome by quite a bit. At the Sharpest Part, I can clean the Highest Item on the Motorhomes Roof, those Wonderful Vent Covers. I clear them by only two inches. Until the Motorhome completely flattens out, on our perfectly Flat & Level RV Port Pad. Then I have quite a bit of Clearance.
My 6 inch Skid-Wheels haven't done any damage to our Black-Top Drive-Way at all. But I sure have put some nice Groves in the Streets Black-Top. Maybe the other guy just needs some larger "Skid-Wheels".
Good Luck. Happy Travels. Dan & Jill & our two Small "YORKIE KIDS', that love to travel as much as we do.