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CATEGORY LISTINGS > DETROIT > Issue Climbing Grades! Could it be Bull Gear? [ REFRESH ]
Thread Title:

Issue Climbing Grades! Could it be Bull Gear?


Created On Saturday April 25, 2015 12:41 Diesel Talk
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MusicCity
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Joined: Apr 2015

Note Saturday April 25, 2015 12:41 View thread in raw text format
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Issue: Bad performance on Grades! I have a 2006 Western Star 4900EX with 14L Series 60 515HP, 13 Speed Eaton Fuller, 3.58 rears. Recently we had the bull gear replaced. Before having it replaced it could out pull all the 14L's and 12L's in the fleet. Example: just this week grossing 72,000 lbs it's following an older Freightliner Classic 12L 500HP grossing 78,500 up a mountain in Virginia. The Freightliner out pulls the Western Star a mile in distance. This had never happen before, could it be the bull gear?

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Mark Edmonds
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grampa
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Joined: Sep 2010

Note Sunday April 26, 2015 06:18 View thread in raw text format
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why was bullgear replaced..this engine should have compact gear train, there are no bullgear bearings to go bad..it rides on a spindle with a bushing..is there a chance they reflashed ecm to newer program..
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MusicCity
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Note Sunday April 26, 2015 15:55 View thread in raw text format
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Pin Broke causing the gear to alter time. Several teeth were chipped.

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Mark Edmonds
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