Skylon usually provides a drilling jig (piece of bar stock with pre measured holes), so that you can just line jig on the oval tube the way you want it, clamp it down, and drill 1/4" pilot holes. Then you drill the inside holes out to 3/8" and the outside holes to 5/8" will have to be drilled out larger (I'm pretty sure these are the right sizes, but you can check the O.D. of the mounting bolts, and the O.D. of the mouunt shoulders on the rack. (Message edited by socalwakepunk on March 18, 2005)
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