ididit Universal Steering Column: Old School Straight Horn Kit - Manual (Page 2)

1. After shortening your Old School steering column to the desired
length
(see Old School Straight column instructions)
position the assembled
column underneath the dash. From here you will determine the
location of the keyhole that will need to be drilled in order to insert
the horn plunger into the column tube. The hole can be placed
behind the underdash mount, at the floor board, underneath the
carpet, the choice is yours.
Measure from the top of the
column to determine where the
horn plunger will be located. Mark
this position on the column tube.
This mark will be the center point
for the smaller hole in the keyhole
( see Diagram 1) .
2. Remove the column from under the dash once you have marked
your preferred horn plunger location.
3. To complete the keyhole,
measure 1/2” from
measurement 1 (towards top
of column). Mark this position.
This measurement will be the
center point for the larger hole
(see Diagram 2) .
4. Disassemble the column in order to separate the tube and shaft.
5. Use a 1/2” drill bit to drill the
larger hole. Center the drill on
measurement 2. Use a 5/16”
drill bit to drill the smaller hole.
Measurement 1 will be your
center mark. (see Diagram
3) . We strongly recommend
using a drill press when drilling the
keyhole.
Once both holes are drilled, file
and deburr all rough edges in
order to prevent wear or chaffing
of horn wire.
Top of
Column
Diagram 3
 
Measurement 2 Measurement 1
1/2” Drill 5/16” Drill
Top of
Column
Diagram 2
 
Measurement 2 Measurement 1
1/2 in (Center to Center)
Finished horn plunger keyhole
Top of
Column
Measurement 1
Diagram 1
