The truckzilla conversion only includes longer TVPs, longer drive shafts, engine mount, engine and tires. (i dont think theres anything else in the kit)
I don't want to go off on a rant here but you might want to do a search on Truckzilla and get more info. I looked at buying one and everyone talked about problems with the .46 engine. A few guys here had to retrun the engine only after running a 1/2 gallon through it. I like the idea of a longer chassis for stability purposes. I don't care for wheelies,it just makes for a slower takeoff. I want to get out of the gate as quick as possible and the Truckzilla chassis would help alot. That's just my thoughts I could be wrong.