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53 Posts
Was wondering what differences there may be (internally) between the ZF6s in the Duramax versus the one in the Superduty. One of the diesel rags just showcased a guy with a pretty quick stick Chevy. I thought youd bend shifter forks trying to shift this quick??
Also does everyone with the ZF get that low pitched "groaning" sound when taking off with really low revs?
Also does everyone with the ZF get that low pitched "groaning" sound when taking off with really low revs?