It wasn't all that long ago that building a custom classic truck often meant saving mangled, rusty parts that long ago had outlived their usefulness. Doors are a great example—truck doors are often bent, beat, rusted, and, in general, trashed.

After contemplating resurrecting the doors of his '56 Chevy, our own Source Interlink Tech Center wrench in residence thought better of it and ordered a set of replacements from Brothers Truck Parts. Known for quality components, Brothers has a huge inventory of parts for '47-'87 Chevy and GMC trucks.

Anyone who has worked on early trucks knows that panel fit and uniform gaps were not high priorities when these things were new. However, standards today, particularly Jason's, are considerably higher—he wanted the doors to fit perfectly with uniform gaps. And while he was at it the decision was made to round the leading corners of the doors. Another custom touch was the installation of billet first-generation-style door handles from Eddie Motorsports.

In many cases, custom touches like consistent door gaps, rounded corners, and handles aren't considered a big deal. However, it's all the little details that add up to make one truck so much more striking than another. Here's how you can add that kind of detail to your truck.

1. New doors and hinges from Brothers Truck Parts and door handles from Eddie Motorsports, along with precision gaps and rounded corners, made a noticeable improvement in the appearance of Jason Scudellari's '56 Chevy truck.

2. New hinges are vital to make doors fit and operate properly.

3. In some cases, a little pushing or pulling on the upper doorframe can improve the fit; not to mention how well the weatherstrip seals.

4. Door gaps are often uneven. In this case it is too tight in at the top of the A pillar. The issue may be with the cab or the door, however, it's usually easier to change the door than the opening.

5. Jason simply ground down the edge of the door until the gaps were even.

6. In some cases, grinding will cut through the folded edge of the doorskin and two edges will be visible.

7. The cure is to simply clamp the layers of metal together and weld up the edge.