Vintage Mustang Forums - View Single Post - Slip Yoke Spline Grease?
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post #2 of (permalink) Old 05-14-2019, 10:41 AM
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Join Date: Oct 2015
Location: Anaheim
Posts: 1,189
What Ford is talking about is a rubber sleeve that is on the output shaft ( normally but not always) . These are most common on automatic applications. The inside of the yoke slides over the sleeve keeping oil out ( to a point) . it's always a good idea to have some grease on the splines , but not too much.

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