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Old 11-22-2015, 08:09 PM
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Do Stainless after market BRAKE lines do anything

Been reading about a harder brake pedal and more responsive brakes with stainless brake lines- any truth to this ?
Anyone have an real life experience with it

thanks

P Scott

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Old 11-22-2015, 08:20 PM   #2
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Been reading about a harder brake pedal and more responsive brakes with stainless brake lines- any truth to this ?
Anyone have an real life experience with it

thanks

P Scott
YES, your wallet will be thinner allowing more room for your butt to fill the seat as you push the brake pedal.



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Old 11-22-2015, 08:26 PM   #3
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Been reading about a harder brake pedal and more responsive brakes with stainless brake lines- any truth to this ?
Anyone have an real life experience with it

thanks

P Scott
Good question, I have an interest in this as well when the time comes.
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Old 11-22-2015, 08:28 PM   #4
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I believe stock jk brake lines are already stainless steel braided but covered in rubber...
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Old 11-23-2015, 09:20 AM   #5
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Been reading about a harder brake pedal and more responsive brakes with stainless brake lines- any truth to this ? Anyone have an real life experience with it thanks P Scott
They should. The rubber usually swells. Stainless steel won't. You may or may not notice the difference but always a good mod to do any way
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Old 11-23-2015, 10:40 AM   #6
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Stainless lines suck if you live in the rust belt. They're not so stainless .
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Old 11-23-2015, 12:28 PM   #7
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I can tell you that I broke one brake line on the trail and drove home with one nice quality - forget the brand front stainless line from a buddy (he carried along JIC before installing) and my Jeep pulled to the side / felt like more brake power went to the that side. When I put an OE line back on b/c I'm cheap - it stopped pulling. When my brake lines need replaced, I'll go to stainless brake lines.
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Old 11-23-2015, 12:41 PM   #8
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Stainless lines suck if you live in the rust belt. They're not so stainless .
I put a set on my truck and I wouldn't waste the money again unless I lived in a warm climate that never saw cold or snow. The pretty colored coating cracked and fell off over the first winter and while the stainless braided hose has not rusted yet the fittings on the ends are rusted to shit. The brake peddle felt firmer after they were installed but I probably could have accomplished the same thing by putting on new rubber hoses and for a 1/3rd of the cost.
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Old 11-23-2015, 01:41 PM   #9
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Stainless lines suck if you live in the rust belt. They're not so stainless .
If your stainless lines are rusting to the point where the stainless jacket is compromised, you have far bigger problems than your brakes lines. The inner liner on the brake line is not of a ferrous nature, unlike the rest of the jeep.
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Old 11-23-2015, 02:41 PM   #10
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I've done it before on a Subaru and the front on a couple bikes but never a Jeep. It seems to help but it could have been that changing to fresh brake fluid is what made the difference.
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Old 11-24-2015, 06:42 AM   #11
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Stainless lines suck if you live in the rust belt. They're not so stainless .
I've had SS lines on my JK for 3+ years in the rust belt. They still look brand new
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Old 11-24-2015, 10:11 AM   #12
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They can potentially improve the pedal firmness or platform feel immensely on a Jeep due to the very long runs of rubber brake line from the factory. That said, I really don't think they are worth it. You are not nearly that deep into pedal pressure on a Jeep when you need to be modulating the brakes. On a race car? Yes. Autocross? You bet. You are driving those cars hard into corners at high speed and scrubbing off lots of speed with loads of traction and your foot hard on the brake. You need that hard pedal feel to modulate brakes in this situation. For your Jeep? Nope. You will never be in this driving situation. There is just not nearly enough pavement traction to ever put you there and even if there was, you'd roll the Jeep long before you'd need to modulate brakes under maximum pressure.

I'll probably do the upgrade on mine along with a half dozen other things once the warranty is out, but I really don't think it's worth it for most Jeep users.

You might get an improvement from fluid change alone.

My own Jeep, which is only 1.5 months old, has horrible brake pedal feel compared to what I am used to. But it works just fine for a Jeep.
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Old 11-24-2015, 07:02 PM   #13
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The stock lines on my 2015 Jeep Wrangler are as long or maybe a little longer than the stainless lines in the 2.5" Rock Krawler kits. The rear lines can use relocation brackets instead of new lines, but stainless is probably best for the most articulation.
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Old 11-24-2015, 11:30 PM   #14
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Our 13 JKU with 3" lift and 315s has SS lines and our 14 JK with 2.5" lift and 305s has OEM lines. The 13 JKU has a much better brake "feel" compared to our 14 JK. Other than that nothing else could be said about performance. If one in going to stay stock or lift up to ~3" then stock lines work well. No need to spend more on SS lines unless you like the looks.
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Old 11-25-2015, 07:58 AM   #15
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They can potentially improve the pedal firmness or platform feel immensely on a Jeep due to the very long runs of rubber brake line from the factory. That said, I really don't think they are worth it. You are not nearly that deep into pedal pressure on a Jeep when you need to be modulating the brakes. On a race car? Yes. Autocross? You bet. You are driving those cars hard into corners at high speed and scrubbing off lots of speed with loads of traction and your foot hard on the brake. You need that hard pedal feel to modulate brakes in this situation. For your Jeep? Nope. You will never be in this driving situation. There is just not nearly enough pavement traction to ever put you there and even if there was, you'd roll the Jeep long before you'd need to modulate brakes under maximum pressure. I'll probably do the upgrade on mine along with a half dozen other things once the warranty is out, but I really don't think it's worth it for most Jeep users. You might get an improvement from fluid change alone. My own Jeep, which is only 1.5 months old, has horrible brake pedal feel compared to what I am used to. But it works just fine for a Jeep.
So you don't want SS lines on your jeep? You trust rubber against trail hazards likes an unexpected rock or branch? Or longevity of them over rubber that can swell and cause a soft peddle feel. Just me but I've always been a fan of getting rid of the rubber no matter what vehicle
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Old 11-25-2015, 08:22 AM   #16
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Aside from possible protection of the brake line, I doubt on a Jeep you would really get the benefit of stainless brake lines. I have a late model Camaro that I track and upgraded the brake system to SS lines along with racing brake fluid. The reason behind this is as you constantly brake you heat up your rotors, calipers, brake pads, and eventually the brake fluid. After a 20-30 minute track session you can boil brake fluid and have brake fade. Keeping the stock rubber lines allows them to heat up and expand, contributing to the soft pedal feel. So by using brake fluid with a higher boiling point and SS lines, you improve your chances of avoiding brake fade. The SS lines I use are teflon with a stainless jacket. There are other things like brake duct cooling as well, but that's not relevant for a Jeep.
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Old 11-25-2015, 08:30 AM   #17
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So you don't want SS lines on your jeep? You trust rubber against trail hazards likes an unexpected rock or branch? Or longevity of them over rubber that can swell and cause a soft peddle feel.
I could have sworn that I said I planned to change mine once the warranty is out. I don't think they give a PERFORMANCE advantage, or any that is noticeable or usable, in a Jeep. But they may very well give a big durability advantage particularly when driven off-road. Longevity? Hard to say. The ends are going to corrode and they will degrade. The rubber lines in my Miata lasted 15 years and 150K+ miles of hard driving. Now I know FCA's quality is nowhere near Mazda but I am not all that convinced that aftermarket brake lines are really a big improvement in longevity. I concede that I haven't looked at any evidence.

BTW "pedal" ...
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Old 11-25-2015, 08:44 AM   #18
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I've had SS lines on my JK for 3+ years in the rust belt. They still look brand new
^^^ Me, too.

I have Rock Krawler brake lines. No rust. And your brakes will feel a tad bit tighter since these won't swell like rubber brakes lines will.

I barely noticed at first, and now don't notice anything at all.
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Old 11-25-2015, 10:48 AM   #19
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You could try putting hundreds of zip ties on your stock brake lines to keep them from ballooning. I think that used to be big in Japan.
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Old 11-25-2015, 01:38 PM   #20
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So you don't want SS lines on your jeep? You trust rubber against trail hazards likes an unexpected rock or branch? Or longevity of them over rubber that can swell and cause a soft peddle feel. Just me but I've always been a fan of getting rid of the rubber no matter what vehicle
They are just rubber on the outside, there is a teflon liner on the inside. Rubber alone won't hold the pressure from the system when the brakes are applied.
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Old 11-25-2015, 02:37 PM   #21
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If a rock or something is sharp enough to cut a rubber line, it's probably sharp enough to cut a stainless line too.
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Old 11-26-2015, 11:39 AM   #22
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I believe stock jk brake lines are already stainless steel braided but covered in rubber...
This is correct. Stock brake lines have stainless braided sleeves over the inner core. The only real difference between the stock lines & aftermarket is the lengths, the outer coating materials used, and of course the stock lines have dedicated terminations on each end rather than the generic ones used on aftermarket lines. A couple vendors have started using stock-type frame side brackets and steel line extensions. On post 2010 (I think) JKs the front lines can be retained by freeing them from the brackets in the coil buckets. In the rear you can just use drop brackets and be good up to about 5" lift.

Voice of experience here, since I got my '09 JKUR in April of that year I've installed 1) Teraflex kit lines, replaced them with 2) Synergy lines with "L" banjos at the calipers, replaced them with 3) Crown lines that worked better with the Teraflex Big Brake Kit, but wouldn't seal well with the hard lines and the coatings peeled, 4) when I installed late-style longer ABS lines in front I tried late-JK stock lines in front as well, routed behind the shocks. They couldn't be routed safely due to the rear-facing ports on the BBK's calipers, so 5) I went back to Crown lines which this time sealed properly at the hard lines. PITA!

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