I just bought a 98 4 door Tracker from a junk yard. I plan to build a mild rig to take the kids wheelin'. I've got some 235 75 15 Tread Wright tires coming, and will build some better bumpers and a roof rack like Conn Ferr used to make. Maybe a body lift.  Anyway My tach doesn't work and neither does the temp gauge. Is this an easy fix? Any pointers?

Marc in South Dakota--cheap as they come