As I understand it, the Sidewinder puts the pivot point to the rear of the hitch centerpoint over the axle--but I would surely like to see it in action in person before getting one. I can't have but think the leverage force on the hitch/truck would be increased in straight-line traveling. But, people say they work. The Pullrite is a proven product, but I believe it has some hitching problems when the truck and trailer are at extreme angles, and it is a lot of money.
Since I don't have either one, I probably don't know what I am talking about.
'05 36TK3 Mobile Suites
'10 F450 new to me
'09 F450 Lariat 4x4--died