B&M 80840 PRO RATCHET SHIFTER - Manual (Page 3)

3
iter blocker pin and e-clips should be installed.
The Park limiter blocker pin and e-clips should
not be installed for any GM transmission.
Move the transmission selector lever by
hand to the full rear position (Low). Shift the
shifter mechanism to the Low gear position
(ratcheted all the way back). Adjust the large
nuts on the cable so that the swivel will slide
into the hole on the selector lever. Tighten the
large nuts completely. Be sure that the swivel
will slide freely in and out of the hole in the
selector lever. Note: The shifter will not
operate correctly unless the correct hole
in the shift lever is used as shown be-
low:
Leave the swivel out of the hole and move
the selector lever to Park, all the way forward.
Also move the shifter to Park position. (See
operation section, page 8). Reinsert the swivel
into the hole in the selector lever. Check to see
that the swivel will slide freely in and out of the
hole in the selector lever in this position. If it
does not slip in freely, adjust the swivel slightly
until it will slip into the hole in the lever.
Move the shifter back to the Low gear
position and check that the swivel will still slide
easily in and out of the hole in the selector
lever. (If you do not use the hole in the lever,
it will be impossible to correctly adjust the
cable). Operate the shifter through all the gear
positions. Check to make sure the swivel will
slide in and out of the selector lever hole in
each gear position. The shift cable is now
correctly adjusted. Install the cotter key sup-
plied with the shifter into the swivel and spread
the key ends.
If you have a problem, DO NOT FORCE
THE SHIFTER, this will damage the cable, the
shifter or the transmission. Simply start at the
beginning and carefully check all your steps.
STEP 12. On GM vehicles, the neutral safety/
backup light switch may be located on the
shifter (steering column or console) or it may
be a mechanical interlock in the steering col-
umn that prevents the key from turning to the
Start position unless the shifter is in the Park
or the Neutral position. Identify the type of
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 me-
chanical interlock, otherwise you have a neu-
tral safety switch. With either type, discon-
nect the battery ground cable to prevent acci-
dental 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
a ¼" of insulation off the wires and install the
slip-on terminals supplied in the kit. Crimp the
terminals onto the 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 the
terminal 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 Shifter. Put the slip-
on terminals on the ends of the lengthened
wires. Crimp the terminals onto the wires
using a crimping tool or pliers. Connect the
wires to the LOWER switch on the shifter. The
backup light switch is usually located on the
steering column behind the instrument panel.
Lengthen these wires and run them to the
UPPER switch on the shifter. Tape the terminal
connections and all other connections to pre-
vent shorts.
Reconnect the battery ground cable, dis-
connect the coil wire and set the parking
Figure 2
Figure 3
Use with four
speed
transmissions
Use with three speed
transmissions