Karcepts KSM03 - Manual (Page 11)

2. MODIFYING YOUR CHASSIS (continued…)
14. Now that everything lines up, you can mark your chassis for cutting. Remove
the shifter mount and rear bracket from the vehicle and re-attach the provided
template with the M8 cap screws in the rear. Also place two 1/4" cap screws
(3/4” long) with 1/4" lock washers and 1/4” flat washers in the front holes just
drilled (and possibly slotted) to support the front of the template.
15. Cut as shown. If your cutting tool does not cut deep enough, you may have to
make one small auxiliary cut underneath the chassis to get the cutout to break
away from the chassis completely. When done, smooth all edges and burs.