Pinion End Play Question
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More Turbo
Joined: Aug 2013
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From: Shelburne, NH
Pinion End Play Question
I am rebuilding a Ford 9" Differential. I assembled it after installing new bearings. The pinion assembly has some "vertical play?" when I tug on it. It moves up and down about 1/32" to 1/64" give or take and has some looseness or knocks on the ring gear when I tug back and forth on the yoke. Is this typical? or, is this where I take the assembly apart again, and add shims between the diff case and the pinion support? and that will remove this movement? or reduce it? First differential I built so I am learning this for the first time - is this movement called lash?
Looking forward to the responses.
Tom
Looking forward to the responses.
Tom
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Joined: Apr 2004
Posts: 34,534
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Take it apart. Are you using the crush sleeve or shim method to set your clearances?
See step 12 here and search out "crush sleeve" regarding all this:
https://www.diyford.com/ford-9-inch-...mber-assembly/
You need to have a dial indicator to measure play, run out etc. You must be within specs and have an acceptable pattern on the ring gear. Otherwise you will have a short lived howler, and you will be buying bearings and probably gears again.
What instructions are you following?
See step 12 here and search out "crush sleeve" regarding all this:
https://www.diyford.com/ford-9-inch-...mber-assembly/
You need to have a dial indicator to measure play, run out etc. You must be within specs and have an acceptable pattern on the ring gear. Otherwise you will have a short lived howler, and you will be buying bearings and probably gears again.
What instructions are you following?
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