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FS, Differential case and spider gear shaft

Posted: Thu Oct 10, 2019 9:31 pm
by Ruxstel24
Very little wear, I don’t know if early or late, but it’s clean.
$75 shipped USA.
Please respond via email on forum contact info.
Thanks

Re: FS, Differential case and spider gear shaft

Posted: Sun Oct 13, 2019 6:11 am
by Ruxstel24
$65 shipped...

Re: FS, Differential case and spider gear shaft

Posted: Tue Oct 15, 2019 1:00 am
by Ken Buhler
Please Dave,
The spider shaft shows significant pitting and something else. That piece looks un-useable. What are the measurements of the gear case ID?
Ken Buhler

Re: FS, Differential case and spider gear shaft

Posted: Tue Oct 15, 2019 8:37 am
by Ruxstel24
Ken, I will try to measure it today, a lot going on though so maybe tomorrow.
The shaft is pitted a little where it clamps in the case, where the gears ride is not...

Re: FS, Differential case and spider gear shaft

Posted: Wed Oct 16, 2019 11:23 am
by Ruxstel24
I haven’t had a chance to measure yet, but I see the shaft fits nicely in the ring gear half. The other half is way smaller where the shaft sits, like it needs machined to fit.
Was there a smaller size shaft ?
Also the shaft where the gears ride cleaned up with a Scotchbrite, I will measure it also.
Anyone have any specs. ?
I have a much more knowledgeable friend coming Friday and I will ask him.
Thanks for looking, Dave

Re: FS, Differential case and spider gear shaft

Posted: Wed Oct 16, 2019 2:08 pm
by henryford2
Just a guess on my part but it looks like the right side differential half is an earlier style (see pictures), the arm diameter on the 1909-1910 (2526) spider was 9/16" rather than 5/8" (2526B). So perhaps it's a mismatch with the right side differential half early and the left later?
left differential .jpg

Re: FS, Differential case and spider gear shaft

Posted: Wed Oct 16, 2019 2:13 pm
by henryford2
From the encyclopedia for 1911

It is possible that the tapered axle first appeared in the 6-rivet rear end. Internally, the differential spider was modified to have larger arms (5/8” instead of 9/16”), which required new differential gears with 5/8” holes (with bronze bushings) and a new differential carrier. The pinion bearing spool was also changed and now used 13/32” studs instead of the 3/8” used in 1910. The dates of these changes are not known but they may have been at the time of the change to the “1912” axle in July 1911.

Re: FS, Differential case and spider gear shaft

Posted: Thu Oct 17, 2019 3:32 pm
by Ruxstel24
Thanks Joe, I think you’re right, 2 different halves. I’ll look for a mate tomorrow.
Are you coming too ?

Re: FS, Differential case and spider gear shaft

Posted: Thu Oct 17, 2019 4:53 pm
by henryford2
Yes

Re: FS, Differential case and spider gear shaft

Posted: Thu Oct 17, 2019 5:02 pm
by henryford2
Maybe N R or S ? Tim would know, see you Friday
Screen Shot 2019-10-17 at 4.58.34 PM.png
Screen Shot 2019-10-17 at 4.58.34 PM.png (71.39 KiB) Viewed 335 times

Re: FS, Differential case and spider gear shaft...on hold

Posted: Mon Oct 21, 2019 5:20 am
by Ruxstel24
Ok, I was informed that the gear half is junk.
The shaft and right half are very nice and I have another set missing one spider gear. Will get a picture today and redo this add.
Sorry, I know modern axles very good, but little experience with Ts....I’m learning.