| New guy questions
Hello everyone, I just joined because I just bought an '04 GMC 4500 box truck with allison auto that I plan to use for delivering furniture and this forum is great! I am a bit of a diesel nut (furniture maker by trade) and we had a '95 chev 3500 box truck that we used - fueled by vegetable oil- with a 6.5L that finally died. I plan to pull a trailer quite a lot and I'm hoping to get some tips from you guys when I am ready to start modifying. My first question may sound a bit "green" but I am curious if the GMC 4500 is exactly the same thing as a Chevy 4500 or if there are more differences than the decals? | 
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