My husband and I bought a '94 Sierra a few months back. We had an '89 Chevy K1500 truck that died and we are taking parts of it to use on the Sierra. About 3 weeks ago when we started the Sierra and he was putting on the brake, one of the brake lines broke. We took off the brake line parts and he wants to install new ones. I called around to the dealers/auto parts shops, and no one seems to have pre-bent lines. So we were going to buy lines and bend them ourselves; he was wondering if there is somewhere we can look at a diagram of the original line. I tried looking online & couldn't find anything. Any help at all would be greatly appreciated!!!!! Thanks.

I highly doubt you going to find any diagrams. You will more than likely just have to try to remember where there are now or look at another truck. I can tell you the rear one runs behind the gas tank. So the only way to make it run exactly is to remove the fuel tank.

There are two firms that make laser pre-bent lines for your truck, one out of Michigan and one in New Hampshire. Pre bent is the way to go. Inline is the Michigan firm, I will have to search my memory for the New Hampshire firm. Here is a link to Inline:

Inline tube The brake plumbing experts

BTW- if you go to bend yourself, I strongly recommend the cooper/ nickel lines sold at AutoZone, much easier to bend and work with over steel pipe lines.

I dont think they sell the cooper/nickel ones in new york. The only legal repair in new york for brake lines is steel. You can get the coated lines here. Im not sure what PA law is.

Sure they sell Nickle Copper lines in NY. All the Europeon manufactures use Nickle Copper. BMW, Mercedes, VW, Audi, Volvo- they have been using nickle copper for 30 years, because it does not corrode. It is near criminal GM did not update from steel to nickle copper. It is a safety and reliability issue. My Wife'* Bravada brake line corroded at 60k miles. Garage kept and always washed.

In NY, they sell the Nickel Copper at Advance Auto parts. hey sell it in pre made lengths and in raw tube. The pre-cut lengths are behind the counter, have to ask for it.

Advance Auto Parts: Search Results for nicopp

Here is a link to AGS, the manufacture of the Nickle copper (worlds largest manufacturer of pre sized replacement brake lines

AGS Company - NiCopp Products


To the OP, go with the pre-made laser bent entire assembly. Cheapest and easiest in the long run. Pull your bed, remove the old line remnants and drop in the pre bent new lines. Super easy. Your old lines will continue to fail. The new lines go from the master cylinder all the way to the calipers. I have done two of these, worked so very well.

I know the local autozone i have never seen it. I always buy the roll of line and all they ever offer is the steel. Maybe they dont have it in rolls? I dont know. I know Toyota only uses steel even on the 2013 models.

i always buy the coil and fittings, its a ton cheaper and easier to run it where its easy. you buy pre bent you are trying to stuff lines where they did when there was nothing else on the car. i think i paid 50 last time for enough to do a whole car and a bunch of fittings