Would anyone like to comment on the different classes of truck converisons?

For example, if there are 8 different classes of trucks, which ones are you most likely to find as truck conversions?

Are they usually found in class 7 and 8 or do you find them in 4,5,6...or 1,2,3...? How small do they get and what defines the different classes as a class?

And in a class 8 size, what are the differences between the truck conversions?

Is it motor size, one or two axles...? Is everthing else similar? What would be the different variables? What would be the constant variables...?

Feel free to ad whatever you want here. I'm listening.

Thanks.

5/31/05 I just found the below info here: www.trucktrader.com :

and here:

Light Duty Trucks:
Class 1-GVW 0-6,000lbs
Class 2-GVW 6,001-10,000lbs
Class 3-GVW 10,001-14,000lbs

Medium Duty Trucks:
Class 4-GVW 14,001-16,000lbs
Class 5-GVW 16,001-19,500lbs
Class 6-GVW 19,501-26,000lbs

Heavy Duty Trucks:
Class 7-GVW 26,001-33,000lbs
Class 8-GVW 33,001-150,000lbs