What kind of ram do I have...heavy duty or light duty?
I curious too now....probably mainly beefed up things like radiator and tranny cooler and higher output alternator and such.
I have done some minor research aswell...I have found the similar answers to what you have found too Augiedoggy...I sure know that it does make a differnce being a light duty vs a heavy duty. Replacement parts are distinctive to each...its all about the GVW...



