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Dodge / Ram • Aisin AS69RC

Quality by Design. Monster by Nature.

StreetMonster Dodge / Ram Aisin AS69RC upgraded transmission and torque converter
Starting at$5,999

StreetMonster Aisin AS69RC

  • Billet nitride-coated K2 hub to resolve the notorious AS69RC clutch tooth wear and failure.
  • Upgraded valve body that raises line pressure for stronger clutch holding under heavy tow and hotshot use.
  • Custom-selected frictions and steels that maintain OEM-like shift quality while increasing durability.
  • Nitrile pan and PTO gaskets replace leak-prone factory cork gaskets to keep fluid where it belongs.
  • Heavy-duty torque converter with new clutch pack (3 frictions / 3 steels) and a new stator sprag for reliable lockup.
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Why Choose Monster for Your Dodge / Ram Aisin AS69RC

  • Purpose-built for Ram 3500, 4500, and 5500 trucks running the 6.7L Cummins with the Aisin AS69RC in real work and hotshot service.
  • Targets known AS69RC weak points like K2 hub tooth failure and leak-prone pan and PTO gaskets with billet and nitrile upgrades.
  • Custom clutch and valve body strategy keeps the familiar Aisin shift feel while increasing line pressure and durability under load.
  • Each StreetMonster AS69RC is dyno-tested with a matched converter and backed by Monster’s tech support and warranty coverage.

What vehicles use the Aisin AS69RC?

The AS69RC is used in Ram 3500/4500/5500 chassis behind the 6.7L Cummins, especially cab-and-chassis, flatbed, hauler, and commercial applications. We’ll confirm fitment based on year, GVWR, and VIN.

Is this a good option for towing and hotshot work?

Yes. The StreetMonster AS69RC is built with towing, RV, and hotshot duty in mind. The billet K2 hub, upgraded valve body, and converter upgrades help the Aisin survive repeated heavy loads and long grades.

Is a converter included?

Yes—each StreetMonster AS69RC package includes a heavy-duty lockup converter with new clutches (3 frictions and 3 steels) and a new sprag, matched to real-world work truck use.

Do I need any programming after install?

We recommend checking for any factory TCM updates and allowing the transmission control strategy to adapt after install. A careful drive cycle with light to moderate throttle helps the Aisin re-learn line pressure and shift timing.

Cooling & maintenance?

Always flush or replace the cooler and lines, verify strong return flow, and start with fresh full-synthetic ATF that meets your Aisin spec. Keeping the AS69RC cool and clean is critical for long life.

*Use-case, vehicle weight, rear gear, tire size, and tuning all affect real-world capacity and longevity.

Aisin AS69RC Knowledge Hub

What it takes to keep an AS69RC alive behind a working Cummins

AS69RC K2 Hub, Clutch Strategy & Cooling (Ram 3500 • 4500 • 5500)

Jump to: K2 hub tooth failures • Clutch strategy & line pressure • Cooling, leaks & gaskets • Install checklist • Fluid, relearn & towing

K2 hub tooth failures

One of the most expensive AS69RC failures is the K2 clutch hub “grenading” and taking hard parts with it. The StreetMonster build swaps in a billet nitride-coated K2 hub that resists tooth wear and spalling, dramatically reducing the chance of catastrophic failure in high-GVWR tow and commercial duty.

Clutch strategy & line pressure

Rather than cramming in aggressive clutch counts that ruin shift quality, the AS69RC build retains stock counts with upgraded frictions and a recalibrated valve body. The increased line pressure improves holding power under load while keeping the familiar Aisin shift feel your drivers expect.

Cooling, leaks & gaskets

Heat and leakage are enemies of any medium-duty automatic. Nitrile pan and PTO gaskets replace leak-prone OEM cork gaskets, helping keep fluid in the unit instead of on the driveway. Pair that with a quality external cooler and clean lines, and your AS69RC is far better prepared for long grades and heavy trailers.

Installation checklist (quick hits)

  • Flush or replace cooler & lines until you verify clean, strong return flow.
  • Verify converter is fully seated before pulling the transmission up to the engine.
  • Use the correct flexplate, hardware, and torque sequence for your 6.7L Cummins.
  • Set fluid level warm using the proper AS69RC fill/check procedure.
  • Recheck for leaks around the pan and PTO covers after the first few heat cycles.

Fluid, relearn & towing strategy

Start with a fresh fill of full synthetic ATF that meets your Aisin spec. After install, ease the truck through a careful drive cycle that rolls through each gear and allows controlled coastdowns. Avoid full-load towing until the transmission has gone through several heat cycles and the control module has had time to adapt to the fresh build and converter.

AS69RC FAQs (More Depth)

Is the AS69RC better than a 68RFE for heavy work?

For Ram HD work trucks and haulers, the AS69RC is generally preferred thanks to its medium-duty roots. A properly built StreetMonster AS69RC with the billet K2 hub and converter upgrades is an excellent foundation for towing, RV, and commercial use.

Can I daily drive and tow with this build?

Yes. The goal of this package is work-first reliability with clean, predictable shifting. It is designed for trucks that see both around-town driving and serious trailer time.

What’s the best way to protect my new AS69RC?

Keep it cool, keep it clean, and don’t lug it. Run a quality external cooler, change fluid on schedule, and downshift on long grades instead of letting the converter slip endlessly under heavy load.

Recommended Add-Ons to Protect Your AS69RC

Transmission Oil Cooler

Help keep AS69RC temps in check on long grades, hot climates, and heavy trailer duty.

Cooling
Full-Synthetic ATF

Start your fresh AS69RC with clean synthetic ATF and set fluid level using the proper procedure.

Fluid