Ram 2500 & 3500 Parts & Accessories
Whether you use your Ram 2500 or 3500 to haul a trailer full of livestock, drag a heavy 5th wheel across the country, or tow your toy hauler to the dunes, the factory transmission is often the weak link. At Tier One, we build transmissions that can handle the heavy demands of towing and high horsepower without sacrificing the drivability you need for a daily driver. We apply the engineering from our track-proven 1000HP+ 68RFEs and 2000HP 48RE builds to create drivetrains that stay cool and reliable, even when pulling max GVWR up a steep grade. From bulletproof transmissions to high-flow turbos and tuners, we have everything to keep your HD Ram working hard and shifting smooth. Make sure to also check out our built 68RFE transmissions, built AS69RC transmissions, or our built 48RE transmissions.
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About Ram 2500 & 3500 Cummins Transmissions & Parts
The big, tough Ram 2500 and 3500s are seriously capable trucks right off the showroom floor, but it is no secret that their transmissions are a major weak point. Whether you are driving a 2nd Gen with a 47RE, a 3rd Gen with a 48RE, or a newer model with the 68RFE or Aisin, the factory transmission often struggles to handle the massive torque of the Cummins engine—especially once you start adding power, towing heavy loads, or fitting larger tires. At Tier One, we specialize exclusively in the transmission and drivetrain components that keep these trucks on the road. We don't just sell parts; we provide solutions to bulletproof your Ram. From complete built transmissions designed to handle over 1000HP to essential reliability upgrades like high-capacity coolers, billet torque converters, and performance valve bodies, we have everything you need to fix the weak links in your Ram 2500 or 3500.Tier One's Built Ram 2500 & 3500 Transmissions
Even though the Ram 2500 and 3500 trucks are generally reliable, the transmission is the number one failure point. Chrysler and Ram have struggled to address this over several generations. The 47RE, 48RE, 68RFE, and even the Aisin AS68RC or AS69RC transmissions can all struggle to stay in one piece, even on bone-stock trucks. When you add on performance tuning, big tires, or heavy towing, the factory transmission can turn into a ticking time bomb. Tier One specializes in the manufacture and installation of high-quality, high-strength Built Dodge Ram Transmissions. Our units are purpose-built to hold significantly more power than stock and handle tough applications without letting you down. We offer configurations ranging from budget-friendly heavy-duty towing builds to all-out competition transmissions for the track. We offer:- Built 47RE Transmissions: For the 2nd Gen 12V and 24V warriors.
- Built 48RE Transmissions: Fixing the weak link in the legendary 5.9L Common Rail trucks.
- Built 68RFE Transmissions: Solving the cross-leak and overdrive failure issues in 6.7L trucks.
- Built AS69RC Transmissions: High-capacity upgrades for the Aisin-equipped 3500s.
Transmission Electronics & Tuning
While hard parts are critical, controlling them is just as important. We offer transmission tuning solutions and monitors that allow you to keep tabs on your transmission's health. Transmission Tuning: For trucks with electronically controlled transmissions (like the 68RFE), tuning is essential to increase line pressure and optimize shift points. This helps the transmission hold the extra power generated by the Cummins engine and prevents the clutches from slipping under load. Monitoring: We also carry monitors that plug into your OBD-II port to display real-time transmission fluid temperatures, torque converter lockup status, and gear selection. Spotting a temperature spike before it becomes a disaster is the key to keeping your Ram 2500 or 3500 on the road.
