My next thought was to use flat stock to make a ledge for the cooler. The bolt holes were originally 1/4" but I drilled out to 3/8 and used grade 8. This seemed to be better.

Last edited by rcmatt; 20/02/19 03:24 PM.
Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys