Dmax Swap Admin, Author at DMAX SWAP

What do I need from my Duramax donor vehicle for my swap?

by Dmax Swap Admin on March 14, 2025

Whether you’re buying a complete vehicle or just an engine, it’s important to know what you need from the donor vehicle in order to operate the engine or complete drivetrain. What do I need to get from my donor? A list of everything you will need in order for the drivetrain to operate. For nearly […]

Duramax Van Harnesses

by Dmax Swap Admin on March 11, 2025

The Duramax 6.6 turbo diesel was offered in Chevy and GMC van applications in the following configurations: LBZ/4L85e LMM/4L85e LMM/6L90e LML(LGH)/6l90e The Duramax used in Van application is significantly de-tuned far below the pick up truck power levels due to the transmission being significantly limited on torque capability. These engines are all tuned to a […]

Dmax Swap Phone Number

by Dmax Swap Admin on June 10, 2020

Dmax SwapPhone Number We know you prefer to talk on the phone rather than typing…BUT At Dmax Swap we get a lot of technical questions, and that’s great because we have the answers when it comes to Duramax conversions; We have put a Duramax in everything but an airplane!!! We have been tuning with EFILive […]

Duramax Swap Custom Standalone Harness Hook-up Demo

by Dmax Swap Admin on May 14, 2018

https://youtu.be/KECjIMrYwIk We’ve had some people express their intimidation of installing the standalone harness and have questions about how they are to be wired. Each connection is labelled and there are tailored instructions included with each updated Duramax standalone harness. In this video, you will get some great information, tips for installation and a visual demonstration […]

Duramax Swap Custom Tuning

by Dmax Swap Admin on July 20, 2017

Our Dmax Swap standalone tuning for Duramax power trains are performed using EFILive software. We have experience tuning standalone duramax power trains in literally dozens of configurations, engine only configurations from boats to race vehicles as well many applications with factory Allison, 6l80e and 4L80e controllers. It is important to tune not only the ECM […]

In order for a 4WD Allison to shift properly, it must receive a VSS signal

by Dmax Swap Admin on September 23, 2015

4WD Allison Details In order for the 4wd Allison to shift properly, it must receive a Vehicle Speed Sensor (VSS) signal. This sensor is typically located in the transfer case on a factory equipped Duramax 4×4 truck. It consists of a magnetic pickup that reads the rotational speed of a 40 tooth count reluctor wheel. […]

LML/LGH Swap Info

by Dmax Swap Admin on September 23, 2015

The LML engine was only offered in pickup truck configurations in both the 2500 and 3500 models. This 397hp/765lb-ft configuration is only available with the Allison 1000 transmission. The LGH is a detuned version of the LML engine and was offered in two configurations: LGH/Allison (cab and chassis trucks and fleet vehicles) These very closely […]

How to identify your Duramax RPO code

by Dmax Swap Admin on September 16, 2015

2017 – 2019 Duramax L5P Quick Identifier: The L5p was first introduced in 2017 and continued until 2019 with the 6 speed Allison option. The best way to identify this engine is the large turbo actuator on top of the VGT turbo as well as the large intake plenum that forms a “Y” connecting to […]