I had the same problem.
http://www.amazon.com/gp/product/B002N5JA2Y/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1
These just pushed tight in the existing hole, then tapped the center pin down. So far so good.
Max
2010 Silverado 2500HD Duramax/Allison Crew
2000 25' Sunnybrook
2010 Honda SH150