***1926-1927 Model TT Ruckstell Rear Axle Assembly***

[VowellArt]

Couldn't find any part number for the Shift Lock Assembly nor for the Gasket. If anybody knows those two part numbers, please let me know so I can add them.

[Kerry]

Shifter lock ass RT1059A old style, RT1059C supersedes RT1059A and the gasket is RT1039
The fork can also be a part T1058A

[A Whiteman]

H Kerry, those are car numbers, TT are a little different.

The shift housing is 2047B, The yoke is 2013A and the yoke spring lock is 2113B. I don't know the spring set, arm or the gasket numbers.

[Kerry]

Adrian. Those are TT Canadian over-seas numbers but I have found my Ruckstell USA FORD TT parts book and the numbers are
Ass, P 1059 A and the gasket is P 1039 and the fork P 1058

The highest part number for the TT parts, go's to P 1097

[A Whiteman]

Thanks Kerry,
Do you have your book in PDF? I would like to get a copy if so.
I don't have a TT Ruckstel book for 26/27 and wouldn't mind one.
The part numbers are those cast on the parts, so far they have always been the same US to Canadian.
Cheers
Adrian

[VowellArt]

Kerry, that number 1059A is for the 13-25 TT, not the 26-27 TT. You can find it in Glen Chaffin's book about the Ruckstell Axle, for both Model T and Model TT, I've got that book and whilst it does cover the TT essentially, it doesn't cover the 26-27 models of the axle. Like with the cars the 26-27 Shift Lock looks much the same only it is a might bigger and takes 4 bolts (all the same length) to mount it. Now the gasket P1039 is not the same gasket as for the 26-27, being that Yoke arm is wider than the 13-25 versions is, it's basically a rectangular opening clear to the edge. The gasket is basically a piece cut from card cover of the instruction booklet, so as far as a part number to be sold by vendors, probably wasn't available, but wouldn't be hard to cut from any card gasket material either. As for the other part number you mention, the Yoke Fork P1058, that's for the 13-25 Ruckstell and wouldn't work with the 26-27 at all, because it doesn't have those leaf springs nor the molded Yoke bracket to hold them. The photo that Adrian has of the Shift Lock Assembly is correct for 26-27, notice there is no swivel collar within the Yoke?, the pins are press fit to the Yoke and pegged from the back side (much like you would do for the screws on the starters ring gear. Also notice the flange on the picture of the Yoke bracket, that there is a angled piece below that's about 1/8 to 1/4 of an inch long. This is to help support the leaf spring (which are about 1.25 inches wide) that actually lock this shifter into place. One picture he's not showing is of the coil spring plunger that holds the lock, the 13-25 TT part number for it us P1063, but on the 26-27 axle it has a roller on the end and not just a wedge tip.

This is my draft drawing extrapolated from the 26-27 Model T Ruckstell Axle Shift Lock Assembly. As you can see, I've got to make some changes to it, which is why the photos are arranged as you see them. I also don't believe that the Canadian Ruckstell is any different than our Domestic versions, there wouldn't be any operational reasons to make a totally different rear axle when this one would work just as well for both LHD as it would RHD TT's. And it also wouldn't fit the natural frugality of Henry Ford, to make something different that didn't need to be different.

[Kerry]

Yes, The 1928 USA parts book only lists the one P1059-A
But as seen in the overseas parts book the 1059A was changed to 1059-C and the earlier one for TT complete ass was RT1059-A then RT1059-C supersedes the RT1059-A
And the part number in the drawings description o/seas, is T.1059-C which I'm sure is the one you are looking for.
Only the one gasket in both books 1039
Fork in the o/seas is RT1058-A which supersedes the RT.1058 but is P.1058 in the USA

[A Whiteman]

Sorry Marttyn
Here is the plunger in detail,
Cheers
Adrian

[VowellArt]

Kerry, soooo the "-A" maybe means American and the "-C" Canadian? Wouldn't be the first time such designations were used.