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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 and building high [...] Continue Reading

We often get the request to provide a custom/extended length harness between the engine connections and the control module connections. This is typically requested to accommodate remote mounting of the control modules. Unfortunately, we do not provide this service for the following reasons: This would require a significant amount of labor Due to the large [...] Continue Reading

LML DSP-5, actually SOTF Switch on the fly (SOTF) tuning on the LML Duramax platform does not provide 5 individual maps like previous year duramax ECM’s. It simply utilizes the fuel rail temperature to limit the total fuel quantity (MM3). It is the electronic equivalent of putting 4 different sized wood blocks under your accelerator [...] Continue Reading

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 of [...] Continue Reading

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 [...] Continue Reading

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 4x4 truck. It consists of a magnetic pickup that reads the rotational speed of a 40 tooth count reluctor wheel. The TCM needs [...] Continue Reading

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 [...] Continue Reading

2001 - 2004 Duramax LB7 Quick Identifier: LB7s were used from 2001-2004. Ways to identify this engine: – Injectors and injector harnesses under the valve covers – The FICM (fuel injection control module) will be located on the front of the passenger side valve cover The LB7 Duramax was first introduced in 2001 and produced [...] Continue Reading