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Transmission and Diff Fluids

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10 years 8 months ago #124685 by 653Detroit
Just wondering if anybody knows what fluid to use in a Fuller 5spd trans in a 1958 R190 and also the Eaton no4 2 spd diff any suggestions will be considered thanks in advance Chris

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10 years 8 months ago #124686 by dieseldog
For the Eaton/Fuller/RR stuff, I have always run SAE 50 engine oil in the tranny and 85/90/140 in the diffs. Never had any problems.

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10 years 8 months ago #124687 by indianman
G'day in those old girls I have always run 80w90 gear oil in both with no problems

Jon

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