B&M 80841 PRO RATCHET SHIFTER - Manual (Page 3)

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Figure 3
Figure 2
neutral safety system you have. If the key will
not turn to the Start position unless the stock
shifter is in Park or Neutral, you have a
mechanical interlock, otherwise you have a
neutral safety switch. With either type, dis-
connect battery ground cable to prevent
accidental shorts. If you have a neutral safety
switch, locate and identify the neutral safety
wires (engine will not crank unless these
wires are connected together). Extend the
wires from the GM switch to the shifter. Strip
1/4" insulation off the wires and install slip-on
terminals supplied in kit. Crimp terminals
onto wires using a crimping tool or pliers.
Connect the Neutral safety wires to the
LOWER switch and the backup light wires to
the UPPER switch, see figure 1. Tape termi-
nal connections and all other connections to
prevent shorts.
If you have a mechanical interlock cut the
wire that goes from the start position on the
ignition switch to the solenoid on the starter.
This wire is usually a 10 or 12 gauge purple
wire. Run wires from both ends of the cut
wire to the B&M Pro Ratchet. Put slip-on
terminals on the ends of the lengthened wire.
Crimp terminals onto wires using a crimping
tool or pliers. Connect the wires to the
LOWER switch on the shifter. The backup