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LegDriver

79 Mack transmission

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just got a 79 Mack dump truck. whats better to use for tranny. I heard u can use gear oil in tranny too. Anyone have knowledge of this.

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47 minutes ago, LegDriver said:

just got a 79 Mack dump truck. whats better to use for tranny. I heard u can use gear oil in tranny too. Anyone have knowledge of this.

mack transmission takes gear oil, a fuller takes 50 w. synthetic.    terry:MackLogo:

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