Ford c-4 and c-5 – B&M 80690 MEGASHIFTER User Manual
Page 4
![background image](/manuals/634692/4/background.png)
Figure 6
safety switch may be located on the
shifter (steering column or console), or
it may be a mechanical interlock in the
steering column that prevents the key
from turning to the Start position unless
the shifter is in the Park or Neutral posi-
tion. 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
mechanical interlock type, otherwise
you have a neutral safety switch type. If
you have a neutral safety switch, locate
the switch and identify the neutral safety
wires (engine will not crank unless these
wires are connected together). With ei-
ther type, disconnect the battery ground
cable to prevent accidental shorts. If you
have a neutral safety switch, disconnect
and 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
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 14. On GM vehicles, the neutral
Figure 5
4
Remove shaded
portion of lever
7/16" nut
C-4 cable bracket
Cable swivel
Cotter pin
Ford lever
Ford C-4 and C-5
1/4 x 1-1/2" bolt,
lockwasher and nut
GM Transmissions