HMMM
Sounds like the Curt mounts to an entirely different place than mine. The Upgraded Tone Clone uses 6 existing threaded holes so no drilling is required.
But X2 on buying a new quality bit for drilling through the frame. When I installed the first Tone hitch, you had to drill 2 holes. The first one took about 2 hours. The second took about 2 minutes because I finally had a revelation & went to Lowes for a new bit.