The Stovebolt Site Forums The Shop Area Engine Shop new brake lines

Hey all I need input. 49 1/2 ton,old lines 1/4"..rear axle 3/16". New set from Inline Tube, lines on rear axle are 3/16" also BUT the treaded ends are to small for the brass blocks. Checked my other trucks,none match that thread size. I let the old girl sit all winter,(no heat) in the garage. I sure would like to see her roll now. Is it possible they put the wrong ends on? I know some had 1/4" rear lines from what I have read. Im frustrated.

I would think your best bet would be to contact "Inline Tube" about your problem. Unless you speced the wrong ends yourself and purchased what they said were the correct ones they should make it right. Someone should come along aoon and tell you what the right size is but that ain't gonna make the ends change.

Hey 49er, Just finished my '48 and it to had 1/4" on the rear and 3/16" up front. Went to my auto parts(NAPA) store and bought 1/4 to 3/16 threaded adpters. They worked just fine. I also found out that if you cannot go 1/4" , the 3/16" will work just as good. You will find that out if ever you decide to install disk on the front. Another story.
Good luck, Mike

3/16" will take more brake pressure than the 1/4". If you are upgrading to booster it won't matter.

Hey bowtie with those adpters did it cause the lines to be too long? My new ones are EXACT length as is. Will the adapters make this a problem? Thanks for the input guys. Rick

49er, the adpts are about 3/4" long but you can bend the turns a little tighter to make up for the x-tra. If worse comes to worse cut and reflair(double flair)Hope this helps! bowties

Are these the lines going from the block to the wheel cylds. Do the 3/16 tubes fit the wheel cyls? If not I would get some 1/4 in. tubes from the local parts store & cut them down if nessesary. Do you have 1/4 in. tube going back to the axle?

bowtie I talked to a guy today about that but said he could not do a double flare like that. Wrenchbender yes they are from the axle brass block to the wheel cylinder brass block with the banjo screw (I think they call it that)that goes through it. 1/4 on the rest of the truck. 3/16 was what I took off the rear axle to relpace?

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OK I got it now. The original & replacement lines are 3/16 but the original had larger fittings on one end. You could take the fittings off the old ones & cut the flare off & double flare it but I would get the reducers like R4me says. 3/16 tubeing is a little tricky to double flare although I,ve done it many times.

wrencherbender, the old lines are TOAST! including the treaded ends. One is still STUCK in the brass block even after soaking. The reducers looks like me best solution so far but why am I in this predicament wrench...do I have a 491/2 when changes were being made that I have read about? Just wierd. I will check more come monday. Thanks wrenchbender. Rick

wrenchbender I forgot, I tried some of that new kind of green coated brake line at the parts store...1/4 and the treads fit. I would have new stainless lying around but that did match up. Just ideas to get her going. Rick

Hey 49er, The 1/4"to3/16" adpts i bought were threaded(female) on both ends so all you had to do is double flair the 3/16" w/male connecter and then double flair the 1/4" w/male connecter and thread the two together. Thats how I did it. Hang in there, somebody on this site will give you the answer you need. Mike