I am pretty sure that is what the dealer said I have in her. My 1 complaint so far is the belt pulleys suck on the van I just changed the idler pulley and now the tensioner pulley just went out its making a loud whining sound so I am fixing it tomorrow lucky I found a new one at advanced for $75 and I am changing the belt also I read on a duramax forum the pulleys are junk on these and the gm ones go out allot and dayco pulleys last about 60k city or 100k highway . and heck while i am at it i may just drop tranny pan and change the filter and fluid why not i will already be frozen and wet from first repair.
