jlmenz Posted December 20, 2018 Share Posted December 20, 2018 Hello All and Merry Christmas. Wondering what you guys recommend for rear Diff oil and amount in my 1954 Mack L 707 gas. Thanks in advance. John Quote Link to comment Share on other sites More sharing options...
j hancock Posted December 21, 2018 Share Posted December 21, 2018 Original spec would have been a GO-D rated multipurpose gear oil. Probably most folks today are using an 85W-90 gear oil or the like. Capacity is in the area of 28 pints. When the oil level reaches the bottom of the fill plug, you are there. 1 1 Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
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