B&M 80840 PRO RATCHET SHIFTER - Manual (Page 2)

2
Neutral and Park only and so that the backup
light switch (the upper switch) operates in
Reverse only, by loosening the screws and
sliding the switches as required. Then re-
tighten the screws.
STEP 7. Install the shifter mechanism into the
vehicle. Slide the shifter cable through the
carpet and the hole in the floorboard. Bolt the
shifter down using four ¼” hex bolts and
nuts. If required use ¼” washers as shims
between the shifter mechanism and the floor
to level the shifter. Do not bend the shifter
mounting tabs. ROUTE THE CABLE AS
SHOWN IN FIGURE 3, AVOID SHARP BENDS
WHICH WILL KINK AND DAMAGE THE
CABLE. Use cable clamps or tie wraps to
secure the cable housing to the chassis to
avoid contact with hot engine or exhaust
system. Seal the cable hole shut to avoid the
entry of exhaust fumes or water. For Gen-
eral Motors vehicles go to Step 8, for Ford
vehicles go to Step 13, for Chrysler vehicles
go to Step 19, for aluminum Powerglide
equipped vehicles go to Step 25.
GENERAL MOTORS
STEP 8. If you have not already done so,
remove the stock selector lever nut and the
selector lever from the transmission. Dis-
card the stock lever and the stock shifter
linkage. Install the B&M selector lever in
position using the stock selector lever nut
(See Figure 4). Torque nut to 23 lb. ft. The
lever should move smoothly from front to
rear with a positive click in each gear posi-
tion.
STEP 9. Remove the two transmission oil
pan bolts from the middle of the left side of the
oil pan. Install the cable bracket in position
(See Figure 4). The bracket must be in-
stalled with two spacers between the pan
and the bracket. (If your transmission is
equipped with a cast aluminum oil pan, these
spacers should be omitted however the
cable bracket may have to be modified).
Install the two supplied 5/16-18 x 1.00" bolts
and tighten to 12-13 lb. ft. Do not overtighten
as this can damage the pan gasket.
STEP 10. Route the shifter cable accord-
ing to Figure 3. Avoid kinks and sharp bends
and route the cable away from hot engine or
exhaust parts.
Remove the two rubber boots, one large
nut, and a large lockwasher from the
threaded end of the shifter cable. Slide the
end of the cable into the cable bracket. Install
the large nut and the lockwasher loosely
over the end of the cable. Install the two
rubber boots onto the end of the cable. Install
the swivel on the threaded end of the cable
and position it in the center of the threaded
portion.
STEP 11. If you have a four speed auto-
matic transmission, be sure that you have
removed the three speed limiter blocker pin
shown in Figure 1. If you have a three speed
automatic transmission, the three speed lim-
floorboard where the shifter is to be mounted.
If the vehicle has a bench type seat, move the
seat to the full forward position. Place the
shifter on the floor with the stick shifted to the
rearmost position. Locate the shifter for ease
and convenience of operation. See Figure 2
for shifter dimensions. (The rear mounting
hole of the mechanism must be at least 1¾”
from the front of the seat when the seat is in
the full forward position). Make sure the knob
clears the dash with the shifter in the forward
position. Mark the position of four mounting
holes on the floor.
STEP 3.
Drill four 9/32" mounting holes
where marked. Temporarily mount the shifter
in place using washers as required to get it
level. Mark the location for the shifter cable
hole, 3" ahead of the front shifter mounting
hole. Drill or cut a 1½” diameter cable hole in
the floorboard. NOTE: Some floorboards are
extremely thin and will not adequately support
the shifter mechanism when bolted to the
floor. For those vehicles we recommend that
you fabricate a stiffener plate for additional
strength.
STEP 4.
Install (but do not secure) the carpet
back to it’s original position. Cut holes in the
carpet for the mounting holes and a 1½” slit for
the cable. DO NOT use a drill bit to make the holes
in the carpet.
STEP 5.
Install the cable on the shifter as
shown in Figure 1. The cable attachment tab
should be bolted to the outside surface of the
shifter base using the supplied ¼” X ½” bolt, lock
washer and nut. Install e-clip to secure the
cable.
STEP 6.
Install the backup light switch and
the neutral safety switch in place on the shifter
mechanism as shown in Figure 1. Install them
using the two supplied #4-40 screws, nuts and
lock washers. If necessary, bend the fingers
slightly so that they engage the slots. Caution:
Overtightening the switch attachment screws
will crack the switch housings.
Adjust the switches, so that the neutral
safety switch (the lower switch) operates in
Cable
E-clip
Cover
Knob
Neutral safety
switch (Lower)
Pointer
Reverse lockout
handle
Figure 1
Backup light
switch(Upper)
Park limiter blocker pin
and e-clips for Chryslers
and Fords only
Limiter blocker pin and e-clips three
speed in upper hole, two speed in
lower hole.
bolt tab to OUTSIDE
surface of shifter base