ididit Cable Shift Linkage Kit: GM Column to GM Transmission - Manual (Page 11)

You need at least 2” of clearance between the shift lever and the toe board
or firewall at the bottom end of the column. It is best if the column can
come out of the car so that some preliminary work
can be done on a workbench.
1. The shift lever at the bottom of the column
needs to be flat so that you can drill two holes
and bolt it to the horseshoe bracket. If your
shift lever is bent, you have to either straighten
it or you will have to cut it out and weld on a new
piece. Please use the same thickness as was used
originally.
2. To install the horseshoe bracket, clamp the
horseshoe piece to the shift lever with vise grips
and drill two holes so that the single hole in the
horseshoe is towards the driver’s side. Make sure
the single hole is 2” from the center of the steering
column shaft to the center of the single 5/16” hole.
The drilled holes need to be 1/4” for the hardware
supplied.
3. Trim off the excess of the original shift lever to
make it look nicer.
4. Take the horseshoe piece back off the column.
Install the column back in your car:
5. Install the column back in the car. Remember to
secure it at the dash and the firewall.
6. Put the column into the park position. Install the
two piece bracket on the column toward the firewall
side of the lower shift lever. Make sure that the
hole that the cable passes through is on the front
(towards the front of the car). Make it snug, but do
not tighten as you will most likely have to move it
later.
7. Reinstall the horseshoe bracket. It can either go
on the top side of the column or below, it is your
choice. Check for any brake pedal interference.
Take the column out of your car:
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