Transmission pops out of gear question

[esiegel]

My 66 T-10 transmission recently started popping out of second gear when coasting. Tried adjusting shift linkage but didn't help much. Does anyone have suggestions?

[GT350Lad]

Ah yes.. I had this problem too, did the rebuild and sorted it

[Bob Gaines]

Ah yes.. I had this problem too, did the rebuild and sorted it

Popping out of gear is a very common occurrence with many T10's. Be sure to have some one rebuild it that is familiar with T 10's . If given to a typical re builder who knows how to rebuild T 10's but is not familiar with solving the popping out of gear problem you risk the rebuild not solving the popping out of gear problem.Miles transmission is a master at solving the T10 problem for example.You can go through Shelby Parts and Restoration.Shelby Parts has overseen the rebuild of several aluminum T10's for me that had the problem

[GT350Lad]

Agree with Bob. Shelby parts and restoration are the ones who did mine.
Best wishes

[shelbydoug]

In my view, it's only a matter of time before the t10 starts popping out of second. I lost count of how many wind up doing it.

I think it is the rule rather then the exception.

[csxsfm]

In addition to the internals, another source of pop out is a crack in the aluminum tail housings. 

[gt350hr]

   +1 Tailshaft housings crack often. Popping out of gear is a fairly easy fix with the right parts . I've done about a hundred of them.

[esiegel]

Thanks everyone for your help and information.
Does anyone know how hard it is to remove by yourself?

[gt350hr]

Most anyone can do it. "Some" set it on their chest ( I used to) , others use a floor jack , few use a real trans jack. Pull drive shaft , parking brake cables , linkage, cross member and bell housing bolts and slid it out. I used to do it in 30 minutes or less.

[KR Convertible]

Most anyone can do it. "Some" set it on their chest ( I used to) , others use a floor jack , few use a real trans jack. Pull drive shaft , parking brake cables , linkage, cross member and bell housing bolts and slid it out. I used to do it in 30 minutes or less.

I'm glad you said "used to".  That brings back some horrible memories!  Lying on my back, arms aching holding up a cast iron toploader and gear oil running down my arm into my arm pit.  Ah, the good ol' days.

[kingchief]

You should come to my house and pull my tranny!!! I would LOVE to put my T-10 back in the car!

All the best,

Steve

[A-Snake]

There are several 'fixes' that a knowledgeable rebuilder knows. One can be filing the detent notch so it requires a little more pressure to shift out of second gear.

[gt350hr]

   + different springs /"dogs" in the synchro assemblies. I only modify the levers in the cover as a last resort. I have changed to a higher tension spring in several I've rebuilt.

[pmustang]

I had a total nightmare with two T10s. I had massive help in here and a pair of words said to me are the most important you will hear

"Hooked sliders"

This is a the solution.

My customer had his rebuilt with Hooked sliders and that was the solution after my multiple attempts to sort

[gt350hr]

  Yes I have used them for 25+ years. Actually developed by Ford in '68.