After reading the following tech story, it would be great if everyone, no matter what their skill level or experience, could tackle the most difficult of dents on their truck, but unfortunately, it's not that easy. So why are we bothering to start our series on auto body sheetmetal repair at the advanced end of the spectrum? The answer is quite simple, actually-with the advent of extremely low-priced auto body tools flooding our shores from China, we've noticed that everyone and their dog seems to be taking a shot at tackling dent repairs on their truck and destroying it in the process. We're not going to get into whether or not the Chinese-made tools are any good, but we'll just say we believe it's always been good practice to buy the best tools a person can lay their hands on.
Enough said. Traditionally, the tool responsible for wreaking the most amount of body damage in the hands of an amateur is the slide-hammer. It's a simple device that attaches to the sheetmetal by drilling a hole into the body, screwing the tip into it, and slamming a heavy circular weight up the shaft away from the dent. In the clutches of a novice, these are real good for stretching the metal until the screw rips out and leaves a peak reminiscent of the Grand Teton national monument.
To demonstrate the Spitzenagel (more commonly known as an auto-body stud welder), the tool that superceded the slide-hammer, we enlisted the help of Jerry Sievers and Mike Gaucher at Paint 'N' Place in Placentia, California. If you are in the market for one of the best custom or restoration paint jobs around, give Jerry a call. On the other hand, if you would just like to ask Jerry a question about how to do bodywork, we suggest enrolling in the autobody course he instructs at Riverside Community College (or a school in your area).

This big dent in the bedside...

This big dent in the bedside was probably the reason we were able to buy the '86 Dodge for only $501 plus a stack of motorcycle magazines.

First, Mike ground away a...

First, Mike ground away a small area down to the bare metal at the dent's origin with a 36-grit disc.

Then he removed the taillight...

Then he removed the taillight housing, allowing access to position the Porta-Power behind the dent and push outward.
After Jerry explained the basics of removing a major dent such as the one in our '86 Dodge's bedside, he transferred our Mopar project truck into the capable hands of Mike Gaucher to perform the actual work. As he was beginning to start on our Dodge, Mike reiterated what Jerry explained to us: "The first step is to identify the point of impact on the dent, then determine where to begin the reversal process."
Next, Mike pointed out that the first mistake amateurs usually make is to start with a dent puller such as the slide-hammer or Spitzenagel instead of attempting to access the dent from behind and cautiously (as in gently) push the dent out. Mike removed the taillight, and luckily it gave him full access to push the dent out in stages with a Porta-Power on the inside while gently tapping on the crown of the dents on the outside. With the dents almost completely removed, there were still creases in the bedside's sheetmetal. This is where the Spitzenagel came into play. Mike spot-welded the copper nails directly into the creases at 1 inch intervals across the entire length of each dent. Then, based on experience, he determined from which end to "walk" the tension out of the dent to release the sheetmetal panel's memory, allowing it to resume its original shape.
In next month's Custom Classic Trucks, based on what we were taught by the crew at Paint 'N' Place, we will reveal to our valued readers how anyone with half an idea of what they are doing can use a Spitzenagel to successfully pop out parking lot dents-don't miss it!

With the Porta-Power still...

With the Porta-Power still applying pressure to the bedside, Mike tapped lightly on the dent's crown with a body hammer.

Next, he used a shrinking...

Next, he used a shrinking hammer (pick) to knock the high spots down in the dent's origin to relieve pressure and begin to restore the metal's memory.

From there, Mike returned...

From there, Mike returned with the pneumatic body grinder and ground away from the origin,...

...staying within the length...

...staying within the length of the dent's crease.

The dent on the Dodge's bedside...

The dent on the Dodge's bedside was a compound hit, meaning it was struck in two places....

...Mike continued to grind...

...Mike continued to grind the damaged area until the entirety of the two creases were down to the bare metal.

Once the damaged area was...

Once the damaged area was properly prepped down to the bare metal, Mike used the Spitzenagel to spot-weld the copper studs (nails) approximately 1 inch apart directly in the crux of the dent's crease.

The direction of the copper...

The direction of the copper studs traveled from vertical to horizontal.

At first, Mike solely used...

At first, Mike solely used the Spitzenagel's slide-hammer, applying very light pressure to see if he could walk (coax) the dent out.

The next step was to increase...

The next step was to increase the pressure he was using to pull on the slide-hammer's handle while working around the dent's crown (high spot) with the body hammer's pick end.

The last step of using the...

The last step of using the copper stud to make the pull was to hammer directly onto the high spot created by the copper stud.

Throughout the dent repairs,...

Throughout the dent repairs, Mike ran his trained hand over the sheetmetal to feel for high and low spots to detect his progress.

Mike told us the best way...

Mike told us the best way to remove the copper studs after he was done with pull was to twist them flush at the head with a pair of dikes (side cutters).

Mike ground down the slight...

Mike ground down the slight amount of copper left fusing the bedside with a 36-grit disc.

The 36-grit grinding disc...

The 36-grit grinding disc was also used to re-contour the bodylines back into the bedside.

Mike used the face of a hammer...

Mike used the face of a hammer as a dolly to back up the shrinking hammer and add finishing touches to insure there weren't any high spots left.

Mike sprayed on a coating...

Mike sprayed on a coating of etching primer to protect the bare metal until we spread on a skim coat of polyester filler and finished off the bodywork in an upcoming edition of Custom Classic Trucks.

If we were to sand the black...

If we were to sand the black guidecoat misted over the primer, we would be able to spot any high or low spots left in the bodywork.