Ford 9 Carrier Bearing Preload By Measuring Case Spread Youtube Learn how to measure case spread and set carrier bearing preload on a ford 9" differential with this video tutorial. What ford calls for is "case spread" in thousandths of an inch. .005 .008 for used bearings, .008 .012 for new. the 90* adapter i have is made by starrett. i made the round rod so the length also comes out right to check the backlash by simply removing the 90* adapter, loosening the jamb nut & swinging the arm over.
How To Set Your Pinion Bearing Pre Load On A 9 Ford Differential Youtubeо This adjustment is being made with the guidance of a manual on a ford 9inch axle carrier. the adjustment is largely similar to how it is adjusted in off road. Today we prepare our ford 9 inch rear third member aka center section with case from speedmaster, gears from motive gear, and spool from moser engineering. w. Joined. may 22, 2003. messages. 24,341. mar 29, 2012. #6. preload and back lash are more of less adjusted at the same time. so setting the back lash should result in the correct bearing preload. basically you adjust the bearing on the ring gear side so that you have no back lash. then adjust the opposite bearing until you get the required back. 61 posts · joined 2003. #1 · jul 29, 2007. folks, i need some help with carrier bearing preload. i am rebuilding the 3rd member on my ford 9”. i am reusing the ring and pinion gears from my old setup and am replacing everything else, including the blown up posi unit with a detroit locker. i have everything setup and have the backlash set to.
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