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Setting Pinion Drag Ford 9 Inch

 
  #1  
Old 01-16-2019, 04:00 PM
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Setting Pinion Drag Ford 9 Inch

I am building a 9" differential 3.70: 1 with a Trac Loc unit. I had it all assembled and found that I had overtightened the Pinion Bearing drag. I took it apart again and got a new Crush Sleeve and pinion nut. My plan was to reassemble the pinion carrier, and set the pinion drag to 25 inch-pounds. I assembled the carried without the seal & slinger, and using the old nut tried to set the drag. I cannot get any drag on the pinion bearings. The carrier spins free with no drag, and I am pulling on the nut with my breaker bar, so much the bench vise & bench are moving. It was not this hard to set the drag, when I first did it. Maybe that nut is distorted from overtightening, and locking on the pinion. I'll try another pinion nut.

Does anyone have an opinion?
 
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Old 01-19-2019, 03:00 PM
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Get rid of that crush collar. You can get a kit from Randy's or others to do so.
 
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Old 01-19-2019, 03:11 PM
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Mark,
Thanks, I was finally able to get 25 inch pounds drag on the pinion bearings using the crush sleeve. I just needed to eat some more Wheaties.
 
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Old 01-21-2019, 02:07 AM
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That kit makes it a breeze and it will never loosen / crush down like they tend to in time.
 

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