It is a stock 2.4L engine. The rear wheels are just coasters, so I imagine it won't make too much difference. Cosmetic only duals. I also have a small 5000 pound winch that I am going to mount on the front bumper.
Bob in San Marcos, TX

 

Very very cool. Keep up the good work and keep the pics coming.

 

Absolutely '1' of a kind.... I like it..

 

Very nice, this will make it one of each !!!

 

Can't wait to see this project coming together! What a great idea!

 

looks great
cant wait to see finished pics

 

UPDATE! I drove the dually extended cab truck today and it runs great the front stayed attached to the back! Everything is working with two exceptions. One: the air bag light stays on, probably because I had to remove the side airbags. The cylinder extended into the truck bed area. Gotta figure out how to fool the computer about the side bags. TWO: The ignition switch will not go into the lock position and I cannot remove the key. Some interlock issue I guess. I got the hydraulic brakes and parking brake extended and they work well.
Here is a good one. I removed the sub woofer amplifier, the XM radio box and another amplifier from the bed to test drive it so they would not be thrown around in the bed. After I unplugged them, the truck would not start. Turns out that if J4 connector in the XM box is unplugged, the HHR will not start. Go figure. Theft deterrent?
So, after I get the ignition switch issue fixed, I will start finishing the body work.

Bob in San Marcos, TX

 

come on bob...quit skimping on the pics

 

SpaceCowboy , just click on Bob's Images and view the pictures there!

Bob nice work!

 

Space Cowboy,

If you click on the "image" button on the far left side of my posts, you will see 38 pictures that I have posted for both trucks. I have hundreds of pictures and videos of the project, but don't want to overload or bore everyone.
Thanks
Bob in San Marcos, TX