If I buy the duallie truck I found, I might convert mine to a duallie, if not im just using the D60 out of it. But I have a few questions since im not too familiar with duallies. Is there anywhere I can buy some duallie fenders if I cant find them on a truck anywhere? Did many duallies come with posi rear ends? And can I put bigger tires on the stock duallie wheels?