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Joe K · 04-29-2019, 06:33 AM

Bearings (Timken) are made to VERY close tolerances. Timkens made today match VERY closely Timkens made in 1930.

Yes, they are that good.

I'm not sure what "Dummy circles" would do in this case? The preload is determined as "rolling friction" of the carrier held between the left and right trumpets and could not be duplicated except by method given by Tom Endy (or Rick Freeman back in the 1970s)

OR only slightly later in the process - finding the "wear spot" matching the pinion to the ring - which is normally adjusted AFTER you have the carrier "total gasket" determined to make the preload (or possibly shims if yours is as far out as was first described.)

Once preload gasketing thickness is established, one adjusts the gaskets from left to right (or substitute A for B,B with the total remain the same) to get the "contact spot" correct radially on the differential bevel gear tooth/pinion.

Or am I missing something here?

Perhaps you could outline what you expect to be the methodology and let us comment on it?

Joe K

04-29-2019, 06:33 AM	#3
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,188	Re: Diff assembly coming soon Bearings (Timken) are made to VERY close tolerances. Timkens made today match VERY closely Timkens made in 1930. Yes, they are that good. I'm not sure what "Dummy circles" would do in this case? The preload is determined as "rolling friction" of the carrier held between the left and right trumpets and could not be duplicated except by method given by Tom Endy (or Rick Freeman back in the 1970s) OR only slightly later in the process - finding the "wear spot" matching the pinion to the ring - which is normally adjusted AFTER you have the carrier "total gasket" determined to make the preload (or possibly shims if yours is as far out as was first described.) Once preload gasketing thickness is established, one adjusts the gaskets from left to right (or substitute A for B,B with the total remain the same) to get the "contact spot" correct radially on the differential bevel gear tooth/pinion. Or am I missing something here? Perhaps you could outline what you expect to be the methodology and let us comment on it? Joe K __________________ Shudda kept the horse. Last edited by Joe K; 04-29-2019 at 08:32 AM.