I was just wondering what size(s) the '62 Rampside used for brake lines. If more than one size how much of each is needed? I was looking in the Ryerson book at stainless tubing 3/16 is available in 22 and 20 gauge wall thickness and 1/4 is available in 22, 20, 18, and 16 gauge. What was used originally? Keith Hammett