Enlarging holes in frame

[RocketScott]

I didn't call the dealer. The original part had flare fittings on both ends. I'm switching to hoses with different ends

What I ended up doing is getting a 3/8" x 1-1/2" pipe (parker calls it a long nipple) to go through the hole and then put elbows on either side. It's somewhat loose in the hole so I need to tighten it up somehow. I think stacking some washers under the fittings should work