Since I have a Bigfoot Leveling System, I took all of 10 minutes. All you need is a long 10mm socket to take off the existing bumper - the screw is recessed inside.
The size difference is 2x. I took the picture with my cell phone while I was under the RV.
The Sumosprings comes with a washer and locking nut. But you can only install it on the passenger side. The driver side the frame is enclosed on all sides. The spring screws into the existing hole so DON'T FOLLOW THE INSTRUCTIONs and screw the old bolt in and out a few times.
Passenger side top you can see the screw coming through.
Test ride will have to wait.
Thor Forums
