I just repaired the odometer gears on the odo. When I went for a test drive my speedometer is jumping around all over. Do you need to calibrate the needle and magneto when you re-install? I know Psfred has done this repair before but if anyone else has let me know. Thanks

Also, are there brake wear sensors for the parking brake pads? Both lights eluminate at start-up "O" and "BRAKE" and then go out after a while.

83 300TDT