B&M 81121 STEALTH PRO RATCHET SHIFTER User Manual

Page 2

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safety switch (the lower switch) operates
in Neutral and Park only and so that the
backup light switch (the upper switch) oper-
ates in Reverse only, by loosening the screws
and sliding the switches as required. Then
retighten 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

your vehicle.
STEP 2. Pull the carpet, if any, away from the
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. (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 shifter stick 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

Figure 1

Cable

E-clips

Reverse lockout

Park limiter blocker pin

and e-clips for Chryslers

and Fords only

bolt tab to

OUTSIDE
surface of

shifter base

Neutral safety

switch (Lower)

Backup light

switch(Upper) w/two

4-40 screws and nuts

Limiter blocker pin and

e-clips three speed in

upper hole, two speed

in lower hole.

Side-plates

E-clip

(cable)

Side-Grips

Short

#6-32

screws

Long

#6-32 screws

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