The Ford Barn - View Single Post - Rear end experts, I need your advise! Are these axles junk?

Bruce Lancaster · 04-11-2012, 10:57 AM

The good book (1938 rebuild chapter of Service bulletins) says .010 backlash, measured at keyway with one axle in vise and twisting the other. Then check endplay, .015 max on either shaft. lash realtes to the gear wear, endplay to other surfaces within differential. I would accept some excess on 80 year old parts, but I fear you might have play measurable with a yardstick...
You only nead to assemble inner case and spiders to check this out.

04-11-2012, 10:57 AM	#7
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: Rear end experts, I need your advise! Are these axles junk? The good book (1938 rebuild chapter of Service bulletins) says .010 backlash, measured at keyway with one axle in vise and twisting the other. Then check endplay, .015 max on either shaft. lash realtes to the gear wear, endplay to other surfaces within differential. I would accept some excess on 80 year old parts, but I fear you might have play measurable with a yardstick... You only nead to assemble inner case and spiders to check this out.