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Goerend Allison Triple Disc Converter (2017+ Duramax L5P)


Product Description

- Triple disc converter
- Billet front cover
- Billet Piston
- Billet or stock stator available (Goerend billet stators guaranteed to never break)
- Limited Lifetime Warranty on converters with billet stators


Allison converters that are ordered with a stock stator should NOT be used for sled pulling, boosted launches, towing, or drag racing. The stock stator is made from aluminum which becomes soft at high temperatures and may cause the stator to break, therefore completely ruining the converter. If you plan on doing any sled pulling, boosted launches, towing or drag racing, you must upgrade to a billet stator to avoid any possible damage.


The chart below shows the K factor and torque ratios as related to our converter stalls. Below is how to interpret the K-Factor and Torque Ratio numbers:

• The lower the K factor number the better the converter will couple, the higher the k factor number the easier it will spool up.

• The torque ratio number is the torque multiplication number – i.e. if you have a 1.85 TR, for every 100 lbs of input torque the converter will deliver 185 lbs of output torque (this is at a 0 speed ratio or at converter stall ). This ratio will go down as the speed ratio goes up.

"G" BILLET STATOR 1800-1900 RPM STALL 95 1.8
"X" BILLET STATOR 1800-1900 RPM STALL 93 1.93
"E" BILLET STATOR 1800-2200 RPM STALL 98 1.8
"C" STOCK STATOR 1900-2200 RPM STALL 99 1.8
"DK" BILLET STATOR 1900-2200 RPM STALL 98 1.88
"R" BILLET STATOR 2000-2200 RPM STALL 101 1.85
"B" STOCK STATOR 2300-2500 RPM STALL 110 2.0
"K" BILLET STATOR 2500-2700 RPM STALL 88 1.65
"J" BILLET STATOR 2700-3000 RPM STALL 113.5 1.94
"Q" BILLET STATOR 3200-3400 RPM STALL 132 1.4

Stall Speeds listed above are approximate & will vary based on engine torque - there is additional information to help you determine which converter would be best for your truck BELOW - if you have questions on which stall to order, please call us at (563) 778-2719. In the future we will be adding more information and are more than happy to explain the differences should you ask. 




Please allow 3 - 7 business days before shipment. Fixed freight cost ONLY applies to UPS Ground Shipping. If you select anything other than ground freight on a converter order we will need to contact you to discuss availability & adjust freight amount. If you need a rush order, please call us at (563) 778-2719


Torque Converter Core Charge: You must select the additional $500 core charge to complete your order. The core that is returned to Goerend Transmission must be a usable core of the same model (i.e. if you are purchasing a converter for a 2006 truck - the core you return MUST be from a 2006 truck), NO part of the core may be rusty, NO part of the core may be damaged in any way. IF any of these statements are true about your core, you may receive only a partial credit towards your core OR you may not receive any of your core deposit back. When we receive a usable core of the same model that has not been modified, the core charge will be refunded with a credit to your credit card. If you have any questions about what cores are accepted - please call us! The $500 core charge IS A DEPOSIT - not the price to keep your core. Click HERE to learn more about which types of cores are acceptable to send back to us See our Shipping and Return page to learn how to safely return your core to us and receive your full core refund. 

Product Videos

Single, Double, Triple, & 4 disk Torque Converters Explained by Goerend Transmission (08:06)
Dave Goerend of Goerend Transmission explains the single disk, double disk, triple disk, and the converter with 3 driver linings and 1 inactive lining. In this type of clutch configuration you can have a single disc, double disc and after that it will be an odd number. i.e. triple disc, 5 disc, 7 disc and so on. Stay tuned for more converter and transmission FACTS.
  • Single, Double, Triple, & 4 disk Torque Converters Explained by Goerend Transmission
    Dave Goerend of Goerend Transmission explains the single disk,...

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