SUM OF THE PARTS
May 28, 2025
THE AUTO BUILDER
Featured
The Ultimate Street Rod Showdown: Goodguys Crowns the 2026 Street Rod of the Year
There’s no shortage of incredible hot rods rolling through the gates at the Goodguys Summit Racing Nationals in Columbus, Ohio. With more than 6,000 of the country’s finest 1999-and-older hot rods, customs, trucks, classics, and muscle cars filling the Ohio Expo Center, the weekend once again delivered a showcase of some of the most impressive vehicles in the hobby.
30 Years And Counting
Television has created an unusual interest in all things high-performance, both cars and trucks. On any night you can watch some creation of modified vehicles, and even though there’s not much reality to the builds, you can get a good idea of what’s going on. But don’t get your hopes up: Unlike the team of experts that supposedly does this in a week, your build will probably take six months or more, and longer at some shops. While you can witness a number of world-class cars rolling across the auction block, commanding huge prices from over-?enthusiastic bidders, you will find that this, too, is not the reality that most of us live in each day, as many auction samples are some of the more rare in existence. The one thing each of these shows has in common is that typically the owner rarely gets his hands dirty and if there is any owner involvement, it is often limited to writing a check.
This no doubt is a great way for some to enjoy the hobby, but it’s not the approach that most enthusiasts take, and that includes Rick Finzer. As a way of introduction, Finzer is the event coordinator for a much respected Florida car show and swap meet known as the Turkey Run. The legendary Turkey Run is celebrating its 33rd anniversary and is well known by most enthusiasts, and Finzer has been involved since its inception.
QUIET DOWN
If you’ve ever hopped out of a classic pickup into a modern daily driver pickup, you have probably noticed the startling difference in noise and heat levels within and throughout the interior. This is because some time in the mid-’80s, pickups began receiving the same noise and heat control attention as auto manufacturers spent on cars, as they filled every nook and cranny with noise cancellation foam, sealant and padding. These insulations greatly helped cancel out noises and improved temperature control, as well as help dampen vibrations.
Older classic trucks are among the worst in all these areas. They squeak, they are noisy, and do little to control heat buildup inside the cab, especially around the floorboard. Since all these trucks were originally workhorses, not much attention was paid to these areas, but this problem is easily solved. Whether you are just beginning your interior and building from scratch or retrofitting your existing truck, Dynamat offers a wide selection of noise and sound cancellation products. Dynamat engineers have designed a complete line of products, ranging from speaker kits to complete sound and noise cancellation solutions from the floor to the roof.
Spotlighter
Product Spotlight: DIESELSITE 17-Row COOLERMAX Transmission Cooler
Top-of-Market Cooling Power: The Last Transmission Cooler You’ll Ever Need
Rated at a monster 59,000 BTUs, this cooler doesn’t just compete—it sets the bar. Standard factory units limp along at 15k–30k BTU. Even most “heavy-duty” aftermarket coolers top out well below the COOLERMAX’s rating. That extra capacity can mean the difference between cruising safely at 180° or cooking at 240°. In the real world, that translates into drops of 50–60°, longer fluid life, and transmissions that simply last.
Author
The Auto Builder Staff
Photos Courtesy of Ford Motor Co. & Dieselsite
Why Transmission Cooling Matters
Heat kills transmissions. Plain and simple. Every year, trucks get sidelined—not because the engine gave up, but because the transmission cooked itself alive. You tow, you haul, you sit in traffic, and all the while your fluid is breaking down, seals are hardening, and clutches are begging for mercy.
At 200° your ATF starts to degrade. At 240° varnish is forming. Push to 260° and rubber internals are toast. Hit 295°? Game over. Slipping, burning, and the kind of repair bill that makes your wallet hurt worse than your truck.
The DIESELSITE Solution
Enter the DIESELSITE 17-Row COOLERMAX.
Rated at a monster 59,000 BTUs, this cooler doesn’t just compete—it sets the bar. Standard factory units limp along at 15k–30k BTU. Even most “heavy-duty” aftermarket coolers top out well below the COOLERMAX’s rating. That extra capacity can mean the difference between cruising safely at 180° or cooking at 240°. In the real world, that translates into drops of 50–60°, longer fluid life, and transmissions that simply last.
Built for Performance and Durability
The COOLERMAX isn’t just bigger—it’s engineered smarter. With a 17-row stacked-plate core for maximum surface area, -8AN inlets, 316 stainless adapters, and universal mounting brackets, this unit is made to take abuse and keep delivering.
Compared to anything else on the market, the COOLERMAX provides a massive margin of cooling reserve, so you’re not just “good enough”—you’re bulletproof.
Standard and Powerstroke-Specific Options
The DIESELSITE 17-Row COOLERMAX is built to fit your truck and your preferences. Buyers can choose cooler fittings only for a simple upgrade or opt for a complete installation kit that includes hoses, clamps, and hardware for a hassle-free setup. Both options are available with 3/8″ or 1/2″ fittings to match your truck’s lines. For enthusiasts running the popular 1994–2003 Ford Powerstroke, there’s a dedicated kit designed for a direct-fit, bolt-on installation, providing heavy-duty cooling for these legendary 7.3L and early 6.0L trucks right out of the box.
Versatility in Installation
Mount it up, down, or sideways. Run it standalone or in series with your OEM cooler. The COOLERMAX plays well with just about any setup, giving you unmatched flexibility.
Your cost? A fraction of what a transmission rebuild will run you.
Specs at a Glance
Cooling Capacity: 59,000 BTU with 17-row stacked-plate core for maximum heat dissipation
Pressure Rating: 150 PSI working / 750 PSI burst pressure
Mounting Flexibility: Can be installed up, down, or sideways to fit any setup
Kit Options: Standard option or 1994–2003 Ford Powerstroke direct-fit kit
Fittings: Available with 3/8″ or 1/2″ fittings, cooler fittings only or complete installation kit
Kit Options: Standard option or 1994–2003 Ford Powerstroke direct-fit kit
Fittings: Available with 3/8″ or 1/2″ fittings, cooler fittings only or complete installation kit
Final Word: Stop Playing with Fire
Bottom line: If you’re working your truck without this cooler, you’re gambling with your transmission’s life.
Don’t wait until heat claims another victim. The DIESELSITE 17-Row COOLERMAX is the heavyweight champ of transmission cooling—bigger, tougher, and built to keep you running when everything else falls short.
👉 Click here to get yours today and put an end to transmission-killing heat.
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