Welcome to the Forum!
Nice lookin Wrecker!! What type of bed is it? Does it have a Boom?
I own a small towing company. I had 2 6.5 tow trucks and just went to a 99 Ford psd and also have a 94 Kodiak Rollback. I like the chevy and the duramax but the only way Id get one is with 19.5 wheels. IMO they hold alot more weight!
Anyways check the sight for info on helping ya out! Gettinga turbo back exhaust and a small programmer would help you out alot. Anything done to the truck?