B&M 80841 PRO RATCHET SHIFTER User Manual

Page 6

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7/16" nut

5/16" x 1" bolt and spacer

Chrysler cable
bracket

Cotter pin

Cable swivel

Chrysler lever

1/4" x 1-1/2" bolt,
lockwasher, nut

equipped. If your pan does not have a drain
plug, remove oil pan bolts one at a time,
working towards the front. As you loosen the
last two bolts, the oil pan will tilt down and
allow the oil to drain. Note; If your oil pan
sticks to the gasket, pry it down with a screw-
driver before loosening the last two bolts to
break it free. Remove oil pan and set aside.
Step 27. Remove manual valve guide plate
by removing two bolts. See figure 8. Un-
hook and remove detent roller spring. Allow
detent roller to pivot out of the way. Not how
the pin on the manual valve selector en-
gages the groove in the manual valve.
STEP 28. If your transmission has a throttle
valve lever on the outside of the shift lever,
loosen the inner pinch bolt on the throttle
lever. Slide the throttle lever and shaft out of
the transmission. Remove the inner throttle
valve lever. Discard these parts.
STEP 29. Loosen the pinch bolt on the se-
lector lever. This can be either an Allen head
bolt of a 12 point bolt head. Do not remove
the pinch bolt. Slightly pry the manual valve
lever and slide selector shaft from the trans-
mission. Discard selector shaft.
STEP 30. This transmission includes the
B&M Powerglide Pro-Lever shift lever, which
is a two piece lever with separate lever and
shaft. Install B&M selector shaft into trans-
mission with the lever pointing down. Hold
the stock selector lever in position in the
case, engage the pin on the selector lever
with the manual valve and rotate the B&M
shaft until the flat on the shaft engages the
serrations on the lever. Push B&M lever
firmly into the transmission until lever stops
on shoulder of shaft. Tighten pinch bolt se-
curely.
STEP 31. Install manual valve guide plate in
place. (Make sure that pin on selector lever is
engaged in groove in manual valve.) Install
the two bolts and tighten to 15 lb-ft. Install
detent roller spring. Hook spring to detent
roller and tab. Selector lever must travel
freely and smoothly from front to back with a
positive click in each gear position.
STEP 32. Clean oil pan and scrape old gas-
ket off of pan and case. (Note: if your pan
does not have a drain plug, you may wish to
install a B&M Drain Plug Kit, part number
80250, at this time.) Old gasket can cause
leaks. Install oil pan with new gasket. Install
pan bolts except for the two center bolts on
left side of pan. Tighten pan bolts to 8 lb-ft. Do
not overtighten as this can damage the pan
gasket.
STEP 33. Install cable bracket in position
with the two remaining pan bolts. See figure
8
. Install the B&M lever onto the shaft with the
lever pointing down. If your cable comes
from the front (usually a rear engined car) the
lever is installed pointing upwards. You will
have to make your own cable bracket for this
installation.
STEP 34. Route the shifter cable according

6

Figure 7

the beginning and carefully check all your
steps.
IMPORTANT: Do not froce 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 23.

Check operation of throttle link-

age again. Linkage must operate smoothly
with no bind. All transmissions using auto-
matic valve bodies must have the throttle
linkage connected and operating or trans-
mission damage will result.
STEP 24. Neutral Safety/Backup Light
switch.
’66-’68: The Neutral safety switch will con-
tinue to function normally. It will not be nec-
essary 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 UPPER switch
on the B&M Pro Ratchet, 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. Go to Step 37.

POWERGLIDE

STEP 25. Disconnect the throttle to trans-
mission linkage, if any and discard. The
Powerglide shift lever supplied with this shifter
has no provision for a throttle linkage.
STEP 26. Drain transmission oil pan. Cau-
tion: Be sure transmission is cool before
attempting to drain oil.
Place drain pan
under transmission. Remove drain plug, if so

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 22. Move the transmission selector
lever 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 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. Install cotter key sup-
plied 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

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