can anyone tell me the correct length belt for a 3.9 non airco but with PAS? Local auto factors don't know. Currently a 7pk 1853 on there but it feels way too short and is on its way out.
Correct answer, 7pk1870. There are two belt lengths over the 3.9 non airco production run. My engine has a high output alternator so needs the longer of the two.
