B&M 80885 HAMMER SHIFTER - Manual (Page 6)

6
the GM park position but is not used on Chrysler
transmissions. Trying to force the shifter will
damage the cable.) The shift lever on the
transmission should be all the way back.
Check to see that the swivel will slide freely in
and out of the hole in the 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
in both LOW and PARK positions. Operate
shifter through all gear positions. Check to
make sure swivel will slide in and out of the
selector lever hole in each gear position. In-
stall cotter key supplied with shifter into swivel
and spread 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.
IMPORTANT: Do not force the shifter to over
travel into the Park position. This will move the
shifter into GM Park position and will damage
the cable or transmission.
STEP 25. Check operation of throttle linkage
again. Linkage must operate smoothly with no
bind. All transmissions using automatic valve
bodies must have the throttle linkage con-
nected and operating or transmission dam-
age will result.
STEP 26. Neutral Safety/Backup Light
switch.
’66-’68: The Neutral safety switch will con-
tinue to function normally. It will not be neces-
sary to hook up the Neutral safety switch
wires on the shifter. Disconnect the battery
ground cable before wiring the Backup light
switch. Locate the original Backup Light switch
on the steering column or console shifter. Run
these wires to the top switch on the B&M
Hammer, See figure 1. Reconnect ground
wire and check light for proper operation.
Adjust switches on the shifter if required.
’69 and Later: The Neutral Safety/Backup
switch is located on the transmission and will
continue to function normally. It will not be
necessary to connect any wires to the switches
on the shifter.
STEP 27. Place tower over shifter mecha-
nism until the bottom edge of the tower touches
the floor. Hold the tower level to the shifter with
the bottom of the tower touching the highest
surface on the floor it will come into contact
with, (See figure 10). Use a ruler to measure
the distance X from the underside of the tower
to the tower mounting brackets on the shifter
mechanism.
STEP 28. Set a pair of dividers at the dis-
tance X, measured in step 27. Hold the tower
level to the shifter mechanism with the bottom
of the tower touching the highest surface on
the floor it will come into contact with. Holding
the tower in position, place one leg of the
divider against the floor while the other touches
the tower, (See figure 10). Using the dividers,
scribe a line around the tower that follows the
contour of the floorboard. Remove the tower
and trim at the scribe line using a keyhole saw
or a saber saw. (The material is too thick to cut
4, C-5 and C-6 transmissions, it will be neces-
sary to hook up the Neutral safety/Backup light
switches on the B&M Hammer. Locate and
identify the Neutral safety (the engine will not
crank unless these wires are connected to-
gether), and Reverse light wires. Disconnect
Battery ground cable before beginning to wire
the Neutral safety and Reverse light switches.
Reroute the wires to the B&M Hammer . Strip
1/4" insulation off wires and install supplied
slip-on terminals. Crimp terminals onto wires
using a crimping tool or pliers. Connect the
Neutral safety wires to the LOWER switch and
the Reverse light wires to the UPPER switch,
See figure 1. Tape terminal connections to
prevent shorts. Reconnect battery ground
cable, disconnect coil wire and set the parking
brake. Check switch operation by attempting
to start motor in each shifter position. The
starter must crank only when shifter is
in the Park or Neutral position. Check
Backup light operation when the shifter is
shifted to the Reverse position. Adjust switches
if required. Reconnect coil wire. Go to Step
27.
CHRYSLER
STEP 21. If you have not already done so,
loosen pinch bolt on throttle lever on transmis-
sion. This is the lever on the small diameter
shaft. Pry the lever off with a screwdriver and
allow linkage to hang free. Remove and dis-
card stock shift lever and stock shift linkage.
Install B&M selector lever in position and
tighten pinch bolt securely, (See figure 9).
Make sure lever is not pushed down so far as
to touch the transmission case. This will cause
the lever to bind on the case. The lever should
travel smoothly from front to back with a
positive click in each gear position. Install stock
throttle lever in position on small diameter shaft
as removed and tighten pinch bolt securely.
Throttle lever must operate smoothly.
STEP 22. Remove the two transmission oil
pan bolts directly below the shift lever. Install
cable bracket in position, (See figure 9). with
two spacers between the pan and bracket. (If
your transmission is equipped with a cast
aluminum oil pan these spacers can be omit-
ted.) Install the two 5/16-18 x 1.00" pan bolts
supplied and tighten to 12-13 ft. lbs. Do not
overtighten as this can damage pan gasket.
STEP 23. Route the shifter cable according
to figure 5. 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 large nut
and lockwasher loosely over end of cable.
Install two rubber boots onto end of cable.
Install the swivel on the threaded end of the
cable and position it in the center of the
threaded portion.
STEP 24. Move the transmission selector le-
ver by hand to full forward position (LOW).
Place the shifter lever 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.
With the swivel in the selector lever, move
the shifter to PARK position, as far forward as
the shifter will go without forcing it. (The
shifter has further travel that is used to reach
7/16" nut
Cable swivel
Cotter pin
Chrysler lever
Chrysler cable
bracket
1/4" x 1-1/2" bolt,
lockwasher, nut
5/16" x 1" bolt and spacer
Chrysler A-727 and A-904
Figure 9