Not exactly sure about the tool. But I did find a site that explains how to change the belt on a 3.0 V6 Mopar ( clicky ). Do you have a picture of the cam adjustment tool, if so I may be able to get a better idea of what you are using. Last time I changed one was on my Probe (2.2L), it may be similar or completely different. Mine wasn't dohc either.
Sean


'99 Silver SVT Contour (2000 miles since June, now needs new front brakes and bearings) '98 CBR900RR Again (Put away for the winter)