B&M 80775 UNIMATIC SHIFTER - Manual (Page 3)

3
installed backwards, the swivel will
hit the oil pan during the rearward
travel arc. The lever should travel
smoothly from front to back with a
positive click in each gear position.
STEP 9. Remove the two transmis-
sion oil pan bolts from the middle of
the left side of the oil pan. Install the
cable bracket in position (See Figure
3). The bracket must be installed 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 5/16"-
18 x 3/4" bolts supplied and tighten to
12-13 lb-ft. If your transmission has
metric bolts install the two 8mm bolts.
Do not overtighten as this can dam-
age the pan gasket.
STEP 10. Route the shifter cable ac-
cording to Figure 2. Avoid kinks and
sharp bends and route the cable away
from hot engine or exhaust parts. The
cable may be secured up and out of the
way with nylon cable ties.
Remove the two rubber boots, one
large nut, and a large lockwas her 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. Move the transmission se-
lector lever by hand to full rear position
(Low). For four speed automatic trans-
missions (TH200-4R, TH700-R4. 4L60,
4L60E, and 4L65E) move the shifter
lever to the rearmost position. For three
speed automatic transmissions move
the shifter lever to the next to the
rearmost position. Adjust the large
nuts on the cable so that the swivel will
slide into the front 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 op-
erate correctly unless the front hole
in the shift lever is used.
Leave the swivel out of the hole and
move the selector lever to Park, all the
way forward. Also move the shifter to
the Park position (all the way forward).
Reinsert the swivel into the front hole
in the selector lever. Check to see that
the swivel will slide freely in and out of
the front 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
front hole in the selector lever. (If you
do not use the front 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 front selector lever hole in each
gear position. The shift cable is now
correctly adjusted. Install the cotter
key supplied with the shifter into the
swivel and spread the key ends.
If you have a problem, DO NOT
FORCE THE SHIFTER, this will dam-
age the cable, the shifter or the trans-
mission. Simply start at the beginning
and carefully check all your steps.
STEP 12. On GM vehicles the neu-
tral safety switch may be located on
the shifter (steering column or con-
sole), or it may be a mechanical inter-
lock in the steering column that pre-
vents the key from turning to the Start
position unless the shifter is in the
Park or 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 mechani-
cal interlock, otherwise you have a
neutral safety switch. If you have a
neutral safety switch, locate and iden-
tify the neutral safety wires (engine
will not crank unless these wires are
connected together). With either type,
disconnect the battery ground cable
to prevent accidental shorts. If you
have a neutral safety switch, extend
both wires from the GM switch to the
switch on the shifter. 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 shifter.
Put slip on terminals on the ends of
the lengthened wire. Crimp the termi-
Cable swivel
Cotter pin
(Use front hole) GM cable bracket (Trimming of bracket
required if used on cast aluminum pan)
Use these two holes for
TH-400 transmission. Use
other two holes for other
GM transmissions
Spacer
Spacer
GM lever
5/16 x 1" bolt and spacer
(Metric trans use M8 x 25 bolt)
7/16" nut
GM cable bracket
Figure 3
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