There is a plastic spacer block in the roller track. You can trim (or eliminate) that spacer as that determines the travel of the rollers. I think you would have to remove a couple of Pop-rivets that hold in the gear and roller mechanism, make your modification and then either install new Rivets or screw and nut to re-attach.
Sounds harder than it really is. I have replaced one of my "regulators" using an air rivet gun and it was very easy....
Larry, Stephanie Park City, Utah
2017 31SL King, 8K axles, Disc Brakes,17.5 Goodyear H tires,BU Camera,5.5 Onan, Heated HT pads, Two Uniguard Awnings, Slide Toppers, 2000w PSW inverter