The ones I use can be shifted "on the fly" only between 2 wheel and 4 wheel high range. When shifting into low range the vehicle needs to be almost stopped and the transmission in neutral.
Andre' B. [EMAIL PROTECTED] If something cannot be defined, it does not exist. Isaac Newton -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of VanDerWal, Peter MSgt << snip >> Many of them come with a low ratio around 2:1 and high ration is 1:1. Most of the newer ones offer "shift on the fly" which, as I understand it, means you can shift while moving and it doesn't require a clutch(?). This would eliminate clutch, flywheel AND motor adapter. If it worked this could represent a significant cost savings as well as a weight savings, not to mention that many of these cases only weigh 45 lbs or so. P.S. The differential would give you an additional 4:1 reduction, give or take. Total motor to wheel reduction would then be 8:1 in low and 4:1 in high.
