Stock/light tow → RoadReady. Mild tunes/bolt-ons → StreetMonster. Frequent heavy tow/hot tunes → SportMonster. Big power/competition → TrackMonster.
Yes. All transmissions come with a matched converter. Multi-disc options are common on higher tiers.
Yes. Perform a Quick Learn (and clear adaptives) with a capable scan tool, then follow the drive cycle to seat adaptives.
Flush/replace the cooler & lines. Replace both 68RFE filters (pan + spin-on). Use fresh ATF+4.
Listed per tier; included Extend warranty can bring total coverage up to 6 years.
*Real-world tow weight, axle ratio, tire size, and tuning influence build selection.
Jump to: Hydraulic issues • TCC & heat • Cooling setup • Install checklist • Quick Learn
The 68RFE’s OE calibration and separator plate strategy can allow clutch overlap and flare—especially when tire size, tow weight, or tuning increases torque demand. Our tiers address this with valve body updates, line pressure strategy, and increased clutch capacity so the unit maintains apply force without excessive slip.
Diesel torque + tow loads punish the torque converter clutch. We pair the transmission with a matched converter (single → multi-disc depending on tier) to reduce TCC slip, improve lockup control, and keep temps stable on long pulls.
Use fresh ATF+4, verify cooler path is unrestricted, and add a low-pressure-drop external cooler for heavy towing. A deep pan adds capacity and helps manage thermal rise on long grades.
With a capable scan tool, perform Quick Learn at operating temp on level ground, then complete a light-throttle drive cycle through each gear and coastdowns. This reduces harshness and protects fresh clutches.
ATF+4 only. Capacity varies by pan/converter; with a deep pan plan roughly 13–17 quarts. Always set level at temperature.
Tow/Haul raises line pressure and adjusts timing to reduce slip under load—use it when towing or in hilly terrain.
Yes—effective load changes and can raise heat. Correct calibration where possible and choose the right tier for margin.
Often hydraulic overlap, worn clutch packs, or low line pressure. The right valve body + capacity fixes it long-term.
No. Quick Learn + drive cycle is mandatory. Tuning can complement heavy-tow setups but isn’t required for matched builds.
Extra fluid + finned aluminum can slow temperature rise under sustained towing and long grades.
We strongly recommend flushing; if flow is questionable, replace and/or add a low-pressure-drop external cooler.
Stock daily/light tow → RoadReady. Mild tune & weekend tow → Street. Heavy tow/tuned frequently → Sport. Big power → Track.
Reduce temps on long drives and heavy tow. Low restriction.
CoolingDirect bolt-in replacement. Great for towing, racing, or stock.
CapacityStart fresh after install; verify level warm, in neutral.
FluidProtect the engine from grid-heater hardware failure.
Engine SafetyThe 68RFE is most commonly found behind the 6.7L Cummins in heavy-duty Ram trucks. If you’re searching “68RFE transmission for Ram 2500” or “68RFE for Ram 3500,” this quick fitment guide helps you verify the common applications before ordering.
| Vehicle | Engine | Typical Years | Notes |
|---|---|---|---|
| Ram 2500 Pickup | 6.7L Cummins | 2007.5–Present | Most Ram 2500 6.7 trucks are 68RFE-equipped. |
| Ram 3500 Pickup | 6.7L Cummins | 2007.5–2012 | 68RFE is common across many trims in these years. |
| Ram 3500 Pickup | 6.7L Cummins | 2013–Present | Some are 68RFE, some are Aisin—confirm by VIN/build sheet. |
Note: Cab & Chassis and certain trim packages can differ. If you’re not 100% sure what transmission you have, confirm by VIN/build sheet before purchase.
