Mr. Gasket 7667 Floor Shifter Conversion: 3-Speed - Manual (Page 2)

NOTE: 1/2” diameter flatwashers are supplied to be used as
spacers between the mounting brackets and transmission
flange. Longer length 7/16” diameter bolts are supplied if
needed.
Tighten all bolts and nuts after brackets have been
assembled. REFER TO FIG. 2.
3. Remove stick from shifter mechanism. Select one of the
holes in the side of mounting bracket, depending on loca-
tion of seat and dashboard, to fasten shifter mechansim.
Punch a small hole up through the floor tunnel in line
with the selected hole in the mounting bracket. Drill a
series of holes through floor tunnel to create a 2-1/2”
diameter opening. Deburr opening using a file. Enlarge
opening if necessary for shifter installation. Attach stick
to shifter mechanism using two (2) 3/8-16 X 1” hex head
bolts and lockwashers supplied. Tighten bolts securely.
4. Fasten shifter to the selected holes in mounting bracket
and tighten securely. Shifter mechanism should be
centered between dash and seat.
TRANSMISSION ARM/LINKAGE ROD INSTALLATION
1. Be sure both transmission control shafts are in the
NEUTRAL position (REFER TO FIG. 3). Remove stock
transmission arms and select the correct arms for
transmission that is being used. REFER TO FIG. 4.
FLAT ARMS FOR MILLED TRANSMISSION CONTROL SHAFTS
Use the slots that locate arms in the most vertical position
in NEUTRAL. Refer to illustration (FIG. 3) that shows
positions and rotation of transmission control shafts.
Transmission arms should be in the most vertical position
when both control shafts are in NEUTRAL. Use factory
hardware to fasten arms to control shafts.
90 DEGREE ARMS FOR ROUND TRANSMISSION CONTROL SHAFTS
A groove must be filed in the round control shafts to accept
the “U” bolt that secures transmission arms. To locate
correctly, install transmission arms onto control shafts in
the most vertical position in NEUTRAL. Align and mark the
area that must be modified, create a groove using a 3/8”
diameter round coarse file. Make grooves in both control
shafts in similar manner. CAUTION: Do not file slots too
deep. REFER TO FIG. 5.
Use “U” bolts and hex nuts supplied to fasten arms to
control shafts. REFER TO FIG. 4.
2. Assemble threaded rod buttons onto linkage rods and
connect linkage rods to transmission arms and shifter
levers. Notice there are two (2) holes in the transmission
arms and two (2) holes in each lever of the shifter
mechanism. Use the combination of holes that allow
adequate clearance for linkage rods and desired travel
of the shifter stick. If a linkage rod needs to be longer, a
threaded rod 9-1/2” long is included with a coupling to
extend the linkage rod length. Grind off any part of
transmission arms that interfere with operation.
With both control shafts in NEUTRAL, adjust the rod
buttons on linkage rods to bring the levers of the shifter
assembly exactly parallel to each other. Check the
position of shifter stick to be sure that it is not located
too far forward or too far back. If necessary, adjust rod
buttons equally in required direction to relocate the
position of the stick. Cut off any excess length of rod
beyond rod buttons that may interfere with shifter
operation. REFER TO FIG. 6.
3. Fasten linkage securely using supplied spring clips.
Test shifter (DO NOT START ENGINE), stick should
move smoothly through entire gear pattern. If shifting is
difficult, shifter levers may not be parallel. Place shifter in
NEUTRAL position. Disconnect linkage and be sure both
arms are in NEUTRAL (rotate arms to NEUTRAL position).
Adjust rod buttons to bring both levers parallel.
Reassemble linkage and test shifter.
4. SHIFTER STICK ANGLE ADJUSTMENT - Observe stick
from driver’s seat, stick position should be centered
between dash and seat in NEUTRAL position. The stick
angle can be adjusted forward or rearward for clearance
purposes if necessary. Adjust shifter mechanism to obtain
desired stick angle. Tighten two (2) 5/16 bolts securely
that fasten shifter to mounting bracket.
5. GEAR SHIFT STOP BOLT ADJUSTMENT - Place shifter
stick in 2nd gear, turn rear stop bolt in until it contacts
the 2nd/3rd lever of shifter mechanism, backout stop bolt
1/2 turn and tighten hex jam nut. Place shifter stick in 3rd
gear, turn front stop bolt in until it contacts the 2nd/3rd
lever of shifter mechanism, backout stop bolt 1/2 turn and
tighten hex jam nut.
6. Remove knob, slide boot and trim plate down to floor.
Use trim plate as template and drill holes through floor
tunnel. Fasten boot using four (4) #10 x 1” pan head
screws supplied.
7. IMPORTANT: Lubricate all moving shifter components
thoroughly using moly base grease on a regular basis
to ensure smooth shifting operation.
FIG. 1
OPTIONAL FASTENING
SLOTS USED WHEN THE
OPTIONAL PIECES ARE
USED. EXCESS LENGTH
CAN BE TRIMMED OFF.
OPTIONAL
PIECES
OPTIONAL
PIECE
FIG. 1: Three basic brackets (items 3, 4 & 5) are used in all installations.
The other three parts (items 6, 7 & 8) are used only when necessary
to clear obstructions on the transmission extension housing. Use the
stock transmission bolts to fasten brackets to transmission. Other
hardware is supplied with this kit to complete the installation.
FIG. 2