I am pretty sure this is the first one anywhere

Supercharged Hummer H2 with every conceivable suspension and other upgrade now has a NV4500 manual transmission and a manual transfer case, all from a 3/4 ton Silverado.

Now it is no longer full time AWD, but can be switched into rear wheel drive for very impressive smoky burnouts (which it does quite well) and almost 50% better gas mileage than the race-built 4L65E auto transmission. It was done because the truck had gone through three 4L65E's and kept breaking tail shafts and the owner wanted a real transmission

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Note smoke from the back tires only and how the truck is starts to rotate and then straightens out







and yes that is how clean the truck was after we worked on it.

Clutch Pedal and Manual Transmission Brake Pedal



Shifter - a short shifter was made using part of the stock manual transmission shifter and a tie rod end to provide the correct geometry to shorten up the shifts. He hasn't finished up the custom console yet, but the cupholders willsitill fit and it will look stock when it is all done







Transfer case shifter. The handle needs to be modified so that it comes out on the outside of the center stack, but that is a no-brainer



The NV4500

 

That's cool....

 

Are you the one who did the work? Where are you located? You do specialty tranny conversions?

Thanks,
Tim

 

I did most of the reasearch into the swap and did the actual swap with the owner of the truck. Just outside of Chicago - Naperville, IL I have done several engine swaps, my most current is a BMW M3 with a LS2/T-56 drivetrain

 

thats so nice how fast is it?

 

Cool

 

Think you can make the new 6 speed Allison tranny work in a 2003 H2? Would want itselectable 4x4. If you think it's possible please message me.

Thanks,
Tim

 

Is this something the shop offers or just a one time swap. I would be interested in a conversion in my '03.

 

I suppose we could do another one, but it is not an inexpensive proposition. If you are interested PM or e-mail me.

 

Definatley neat. I wish we had ordered a manual for the H3. Automatic is nice, but I find myself reaching for the gearshift like I want to shift.