Lingenfelter L450010197 L450020197 Lingenfelter C5 Corvette Battery Relocation v1.5 - Manual (Page 8)

Center the battery tray in tub. Then drill 21/64
inches through the two holes in the front of the
battery tray. Locate the black angle bracket with
four slots (part #6). Using two 5/16”x18”x 3/4” (part
#18) serrated flange bolts, install the bracket from
underneath the car. The horizontal leg of the angle
bracket should be to the bottom. Install 5/16 inch
nuts (part #19) from inside the car, make these nuts
snug, but do not tighten.
Locate the black square tube with stand-offs on each
end. This tube should slide in from underneath the
car and sit on top of the angle bracket. The stand-
offs should be in contact with the frame on both
sides. The small round tubes have been welded off-
center to clear the sub-frame mounting weld. Drop
in the two 5/16”x18x1-1/4 bolts (part #17) from the
top to secure the square tube to the angle bracket.
Install two 5/16-inch nuts (part #19) finger tight.
On the frame rails directly behind the hole you just
drilled, you will see that the slotted hole still has the
punched slug still attached to it. You will need a
Phillips screwdriver to pry it over. Now go through
your 21/64 inches hole with the Phillips screwdriver
and push it the other way. Work it back and forth
until it breaks off.
Make sure the stand-offs are sitting flat against the
frame. If the stand-offs hit the weld, sand a small
bevel on the standoff. Then transfer punch through
the stand-offs to mark the frame for drilling. Re-
move the square tube and drill the frame 21/64 inches
in the two marked places.
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