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bigblazechev1 10-08-2006, 11:11 PM I had a high pitch squeal come from my allison towing hard at about 4600rpm on a long 6% grade. is this normal? I had one guy tell me it was. it sounded like a very high pitch metallic squeal. hope i didnt burn my clutches Machinator 10-09-2006, 11:17 AM Nope, that's not normal. It could be the pump, it's definitely not the clutches. bigblazechev1 10-10-2006, 10:29 AM my pump does make a pretty loud noise right after startup. well I will drive it til it dies then build the tranny the right way. | ||