Heavy-Duty Trailer Dolly, 1500lbs Tongue Weight Capacity, 2 in 1 Trailer Mover with 2 in Ball, 16 in Pneumatic Tires and Universal Wheel, Portable Tow Dolly for Moving Car RV Trailer

This product is not suitable for your application. First of all, it is difficult to use and will cause a certain degree of damage to the trailer. It is recommended to use it on flat ground.

While customer reviews didn't mention the height adjustment mechanism specifically, they did mention that the dolly is sturdy and well-built. The product description states that it has a powder-coated carbon steel construction and an adjustable height from 22 inches to 26 inches to accommodate different trailers.

Yes you can. You would just need to purchase the ball separately

I don’t know if the 1 7/8” ball is the same as a 2” ball thread size if not you could fab up the upright stem with the correct thread size for a 17/8 too fit

We do not have a 1" threaded hitchball section (replacement shank) for this dolly. It comes standard with a 3/4"-threaded shank and a 2" hitch ball only.

There is currently no electric version of this product.