redneck ranger
New Member
i have a 1999 ranger with 5.5 inch lift and running interco 33x12.5x15 trxus sts on 15x10 rock crawler rims,i installed a jet performance accu-speed control unit, i am having trouble with consistant speed readings.one time the speedometer is reading right and other times its up to 20 mph high. anyone have any ideas whats wrong please help.