Lingenfelter L250070709 Lingenfelter CTS-V LSA Supercharger Pulley 2009-2012 v1.9 - Manual (Page 16)

Page 15.
50. Notice the pulley is clamped evenly, the
end is flush with the bearing rod, and the hole is
drilled in the center of the end of the pulley.
49. Using a drill press, secure the
supercharger pulley so that it is clamped evenly
and drill a 3/16” hole, 1.05” deep in the center of
the end of the pulley (see step 50). Next, using
a 1/8” drill bit, drill a hole completely through
the pulley and shaft in the same position. This
will allow you to remove the pin if you are ever
replacing or removing the pulley.
NOTE: LPE recommends using a hardened
solid carbide drill bit for pinning the pulley.
47. Using a pulley removal tool, remove the
factory pulley from the supercharger front cover.
48. Lubricate the bearing shaft and carefully
place the LPE pulley on it, then use a machine
press to press the new pulley on to the
supercharger front cover until it is flush with the
bearing shaft. Do not press on the three (3)
aligning pins.
Steps 49-53 are optional. Since the
supercharger pulley is spinning at higher
RPM and driving more load than the stock
pulley, pinning the pulley is recommended
but not required. LPE pins all of their
supercharger pulleys.