In this episode of the Power Driven Podcast, Will and Meyer dig into a topic that often gets overlooked but plays a huge role in any serious diesel build: the drivetrain. While most people focus on engines and transmissions, it’s the transfer case, axles, driveshafts, and U-joints that ultimately keep power on the ground and prevent parts from failing when things get rowdy.

They begin by breaking down the differences between the 241 DLD and 241 DHD transfer cases found in second generation Dodge Rams. You’ll learn how to identify each one, what sets them apart, and why chain width, output shaft diameter, and gear ratios all matter. They also discuss common upgrades like swapping in a 271 or 273 transfer case, what it takes to make them fit, and whether they’re truly necessary for your build.

From there, the focus shifts to rear axles. Will and Meyer explain the differences between Dana 70 and Dana 80 setups, including the hybrid Dana 80 found in manual transmission 2500s. They cover axle shaft strength, ring gear sizes, spline counts, and how tube diameter and housing design affect long-term durability. You’ll hear about real-world failures and how to avoid common mistakes that lead to broken shafts, twisted yokes, or worn-out gears.

Driveshafts and U-joints also get their time in the spotlight. The guys explain why they prefer non-greaseable Spicer joints over aftermarket versions, how slip joint design can become a weak link, and when it makes sense to step up to 1480 or even 1810 series joints. They talk through the importance of matching your components to your horsepower level and why some problems come down to poor setup rather than part strength.

Additional topics include CAD deletes, front axle upgrades, vibration diagnosis, bearing wear, and how to prevent common drivetrain issues before they start. Whether you’re building a drag truck, a dedicated pull rig, or a reliable high-power street setup, there’s something here for every diesel enthusiast looking to get more from their drivetrain without unnecessary failure or overbuilding.

If you’re running 500 horsepower or pushing well past 1,500, this episode delivers practical knowledge and hard-earned insight to help you make smart, effective decisions for your build. These are the lessons that come from years of breaking parts, testing combinations, and learning what actually works in the real world.