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View Full Version : Took time out from my e36 to do a Hummer HS Manual Transmission Swap



rao
07-25-2007, 03:47 PM
One of the more interesting projects I have ever worked on.

It took a day and a half but it all works :D

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 :cool:

Sadly, the owner would not agree to the grounding kit or lower temperature thermostat as I had hoped :lol:

Most of the pics didn't turn out :(, I will get some more of the swap itself, these did turn out:

http://img260.imageshack.us/img260/3050/h2trans2uk7.jpg

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

http://img260.imageshack.us/img260/9927/h2trans1cuv2.jpg

http://img510.imageshack.us/img510/9366/h2trans1auo8.jpg

http://img209.imageshack.us/img209/2237/h2trans1bnd9.jpg

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


Clutch Pedal and Manual Transmission Brake Pedal

http://img513.imageshack.us/img513/1593/clutchpedaluk1.jpg

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 :)

http://img238.imageshack.us/img238/1421/shifter1gm8.jpg

http://img366.imageshack.us/img366/6628/shifter2cj2.jpg

http://img70.imageshack.us/img70/4616/shifter3hu7.jpg

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

http://img161.imageshack.us/img161/8886/transfercaseshifterer2.jpg

The NV4500 - nothing unique here :)

http://img238.imageshack.us/img238/241/transfercaseandnv4500kr1.jpg

Now it is back to work on the BMW :)

autophile
07-26-2007, 12:00 AM
The first H2 I've seen that doesn't scream "POSER".

Nice!

Graham325is
07-26-2007, 04:03 AM
nice hummer

rao
07-26-2007, 02:42 PM
Updated with more pics.

HBpredhunter
07-29-2007, 02:17 AM
i used to be a gm tech, the nv4500 will not break in that car!

SpasticDwarf
07-29-2007, 09:45 PM
thats SICK.