Longbox55 is correct. The diameter of the hard lines for the brakes are different between a 3100 and a 3200 except for the rear axle lines. I went back and forth with Inline Tube for a while on this until finally it was resolved and they sent me the correct lines.

Just a guess...was it Inline Tube you got the lines from?

Please see this post: https://www.stovebolt.com/ubbthreads/ubbt...0506#Post380506


Mike
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1958 Chevy 3200 Fleetside
1958 GMC 100 Wideside
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