We’ve covered Michigan-based Hummer experts Milspec, quite extensively in the past. The restorations shop specializes in the Hummer H1, selling heavily upgraded versions of the classic military truck with complete frame-off restorations, a modern day General Motors diesel powertrain and much, much more.
Jay Leno recently invited the three young Michiganders that started Milspec out to Los Angeles so he could sample their products. The entrepreneurs recognized that companies like Icon were offering heavily upgraded versions of popular old off-roaders like the Toyota Land Cruiser and Ford Bronco, but no one was capitalizing on the potential demand for a re-engineered and re-imagined Hummer H1. They soon set up shop and are quickly gaining popularity, having already built a handful of Milspec Hummer H1s for customers.
The centerpiece of any Milspec Hummer H1 build is the modern-day GM diesel powertrain.
The company swaps a brand new 6.6-liter Duramax diesel into the trucks, which is offered in a state of tune that makes 500 horsepower and 1,000 lb-ft of torque. Mated to the motor is an Allison 1000 automatic transmission and upgraded part-time 2-speed transfer cases.
But the powertrain is really just the start. Milspec does not reuse any Hummer parts when building their vehicles, stripping them down to the bare frame and body and installing entirely new suspension and a new interior. Some of the exterior body panels are also brand new and are actually more durable than the aluminum pieces that the military was forced to use on the H1.
Check out the video embedded above to learn all about the Milspec Hummer H1 and to hear what Jay Leno has to say about the American company.