front brake line fittings on 1994 Lumina van
I'm replacing brake lines on a 1994 Chevy Lumina van. Come to find out the fittings where the lines screw into the master cylinder have two different configurations. Two are coarse thread, and two are fine. The fine seem to be a bit longer, perhaps 3/32". It's bad enough that this is my first time doing this, but the parts dealer only sold me fine nuts. OK, so I can use the coarse nuts that I took out, but I don't remember which ones are front and which are rear. I'm thinking the fine threaded nuts are for the front. Can you give me a clue?