If you own a popular muscle car or classic truck, you can buy most of the hardlines you might need for them from a variety of restoration houses. But if you own something more obscure, or your budget is tight, then making your own brake, fuel, or trans cooler lines at home is arguably the smart choice. So how do you do that? What tools do you need? And how hard is it?
The answer is not that hard, and you don’t need that many tools. In fact, you can do hard lines with very simple and cost effective tools, or upgrade to some fancier stuff. Either way, you can make it happen.
Check out the video below to see some of what you need to know and do.
Video Description:
You can make your own hardlines — for brakes, fuel, and transmission — and this video shows you how.
This is a fundamentals-focused guide to automotive hardlines, covering the tools, materials, and techniques needed to bend and flare rigid line safely and correctly.
The concepts shown here apply to most vehicles and systems, not just one specific build.
In this video, I cover:
Automotive hardline materials and sizes
Stainless vs steel vs nickel-copper hardline (pros and cons)
45° double flares vs 37° AN flares
How to use flaring tools correctly
Practical bending techniques and tips
This isn’t about rushing or chasing perfection — it’s about planning, patience, and understanding your tools so you can build clean, serviceable hardlines that last.
