Slipping out of 3 rd on compression

[tbirdtbird]

"The needle bearing cage that was provided in the transmission rebuild kit was too long for the input main shaft and it pressed the input shaft forward a bit which didn't help with the engagement of third gear."

Are you using Ford PN A7063 the main shaft spacer ring? Tom Endy has cautioned about not forgetting this...

Brattons and Snyders show that their shafts, gears, and roller caged bearings are USA made. Possibly others too but I do not have the catalogues

[SSsssteamer]

Yep, I used the main shaft spacer ring with Ford's original needle bearings. Mac's transmission kit didn't use the spacer ring as their needle bearings were too long to start with.

[Tom Wesenberg]

Some shafts have the ring built in, so if you add an extra spacer ring, you could be in trouble.

[rocket1]

Wife cleaning the wheels! she is a keeper.

[SSsssteamer]

Originally Posted by rocket1

Wife cleaning the wheels! she is a keeper.

I have had the wife for 50 years and the Tudor for 47 years. They both are keepers.

[SSsssteamer]

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Now at a month and a half later, the transmission in our 1929 model A Ford is still working perfectly. Thank you for your help.

[tbirdtbird]

Certainly glad to hear this!!

Did you notify the supplier that they sent you defective parts?

"The needle bearing cage that was provided in the transmission rebuild kit was too long for the input main shaft and it pressed the input shaft forward a bit which didn't help with the engagement of third gear."

you went thru a lot to figure this all out......

[Big hammer]

Good deal ! Maybe someone from Macs will read your fix !

[Mitch//pa]

to bad you cant send in a labor reimbursement claim..

[Tom Wesenberg]

Before blaming the kit, are you sure the kit came with 2 short bearings and 1 long bearing?
Short = A-7118 and long = A-7121

The cluster gear takes a short and a long bearing, and the input shaft takes the other short bearing.

[Allanw]

i used the Mac's kit with no issues, and really glad I did - our transmission was almost entirely scrap! Luckily the case was fine - all the gears, shafts and bearings were well knackered, and I'd recently already rebuilt the shift tower anyway.

It's a joy to drive now, whereas before we were having issues with jumping out of 3rd at the most awkward of times, and prior to the shift tower rebuild, it was jumping out of second too.

[SSsssteamer]

Originally Posted by Tom Wesenberg

Before blaming the kit, are you sure the kit came with 2 short bearings and 1 long bearing?
Short = A-7118 and long = A-7121

The cluster gear takes a short and a long bearing, and the input shaft takes the other short bearing.

While trying to sort out my Model A parts pile, I just torn down 10 model A transmissions and I was surprised with the differences that they had between them. Like Tom said, some require the spacer ring on the main shaft and some don't. Some require a thrust washer at the front of the cluster gear and some don't. I even had one transmission case that didn't have the four 5/16" NC holes drilled and tapped for the input shaft retaining sleeve cap screws. Out of the ten parts transmissions, I was able to save four complete transmissions. MY shortage were transmission cases. Now that I have recent experience of what goes where, I see that Mac's sent me two long needle bearings and one short needle bearing, instead of being sent one long bearing and two short ones. Not knowing that the longer bearing didn't belong between the input shaft and the main shaft was my error. My old input shaft to main shaft bearings were a gravel pile so I didn't know how long they were really supposed to be. I was smart too late. I should have know better.

[dlshady]

Originally Posted by SSsssteamer

While trying to sort out my Model A parts pile, I just torn down 10 model A transmissions and I was surprised with the differences that they had between them. Like Tom said, some require the spacer ring on the main shaft and some don't. Some require a thrust washer at the front of the cluster gear and some don't. I even had one transmission case that didn't have the four 5/16" NC holes drilled and tapped for the input shaft retaining sleeve cap screws. Out of the ten parts transmissions, I was able to save four complete transmissions. MY shortage were transmission cases. Now that I have recent experience of what goes where, I see that Mac's sent me two long needle bearings and one short needle bearing, instead of being sent one long bearing and two short ones. Not knowing that the longer bearing didn't belong between the input shaft and the main shaft was my error. My old input shaft to main shaft bearings were a gravel pile so I didn't know how long they were really supposed to be. I was smart too late. I should have know better.

That's an earlier transmission case for the multi-disc clutches. And there were a few variants of those too...

[charles=fla]

friend out here in fla had this problem long story short ,, pilot bearing,, input shaft worn..he welded it up..turned it to specs on lathe ,installed and would not slip out again..hope input data helps..Charles..)..ohh installed new pilot bearing..)..