Does anybody know what year this was used,Bob
Looks like a modern adaptation.
No I have a few of these, this one is nos, Bob
Not real early, those had narrower spider arms and bushed spider gears. I opened an original 13-14 RE and it had that type of spider. They are not that uncommon. If someone were to go original they would need the narrow axle gears to insert two fiber washers between the backs of the gears and the inside of the carrier.
Yes but the one I have the arms are stepped, Bob
Perhaps I didn't make it clear enough. The one you have is the same one I found in a 13-14 RE. The one in my photo is earlier.
I found a stepped spider with brass inserts in the three little gears in my 1914 touring. They were totally worn out. Also found a Babbitt washer on one side of the carrier and a brass one on the other side. Thanks to Jack Daron for advice and parts I was able to put it all back together.
Bob, Your dads reprint of the early T parts book shows the non-stepped version of the spider P/N 2526. I believe it was used 1909, 10 and maby 11. I believe that they increased the diameter of the bearing surface to improve wear. I believe that the stepped shoulder was used 1912-1914 or close to that. I have several in my collection also.
Not uncommon. I think Ford started phasing those out during 1913.
I, once, rebuilt a 13 rear axle. It had the same bronze bushed spider. The bronze bushing was thoroughly worn out; had at least a 1/16" of 'slop'. Replaced it with later style.
The axle gears are a different size in those. You can't mix and match with the later ones.
Jack, I changed out everything but the housings; all gears, axles, all differential parts, everything. Was still running nice when the guy I sold it to; sold it to another buyer after him, at least a decade later.
Measuring spiders and gears today. This is out of my 1915 roadster. Is it an unaltered 1915 rear axle? Probably not. The bronze thrust washers are spiral grooved. Those are not original, are they?
My 16 coupelet had the same spider with brass insert.
Steve, I believe bronze washers were used until 1915. I rebuilt a 13 rear axle once that had spiral grooved bronze washers.