I could be wrong, but I believe the mileage is on the ECM
This is probably a dumb question, but did you check that the dimmer is up all the way? If the dimmer switch is down the odometer will not be visible at all
PIS 175/80's, Van Turbo with EBPV, BD Billet Wheel
Lots of money spent at RiffRaff
Holley fuel pump, in tank mods, crappy riding leveling kit, DP-F6, 5 Gauges+Edge CS in dash, CB radio in Dash, over 100 goofy little mods
Still pretty slow, just less slow now.