63 T-10 Question

[Henry A.]

Rebuilding a T-10 for a 63...is the spline or output shaft a 16 tooth or a finer 24 to 26 tooth?

Thanks

[Joe L.]

Re: 63 T-10 Question

Rebuilding a T-10 for a 63...is the spline or output shaft a 16 tooth or a finer 24 to 26 tooth?

Thanks

Henry-----


It's the course spline. I don't recall if it's 16 teeth but it's definitely not the 26 spline. The 26 spline was used from 1965 to 1967 as well as 68-70 with manual transmission. 32 spline was used for 68-70 with THM as well as most 71+.

[Henry A.]

Re: 63 T-10 Question

Joe, Thanks for the quick response. This confirms what I and the rebuilder thought. Your confirmation helps to rebuild it correctly.

I really appreciate your help.

[Ray K.]

Re: 63 T-10 Question

Henry

If the trans is definitely a Borg Warner T-10 - it will have the coarse 16 spline out put shaft.

If the trans should happen to be a Muncie - it will have the fine 26 spline out put shaft.

Ray

[Timothy B.]

Re: 63 T-10 Question

Ray,

I believe the Muncie transmission in 1963 used the course spline main shaft, fine spline started in 64.

[Ray K.]

Re: 63 T-10 Question

Timothy,

My P & A catalogs (65 -67-69 ) say otherwise; #3868728 would be the fine spline yoke.

Ray

[Norris W.]

Re: 63 T-10 Question

If it's really a '63 transmission the front input shaft cover will be smaller in outside diameter where it centers in the bellhousing. This is a one year only transmission and makes the bellhousing one year only also.

[Eric D.]

Re: 63 T-10 Question

Muncie 4-speeds never used a course spline(16) out put main shaft, 27 spline 1963 1/2 thru 1970, 32 spline 1971-74 and 1970 BB Chevelles...
Hope this helps... Eric

[Joe L.]

Re: 63 T-10 Question

Timothy,

My P & A catalogs (65 -67-69 ) say otherwise; #3868728 would be the fine spline yoke.

Ray

Ray-----


Yes, 1963-64 with Muncie did use a 26 spline output (main) shaft. However, the transmission yoke was not originally GM #3868728. The original yoke was GM #3832678. The 65+ yoke, GM #3868728, replaced it for SERVICE in January, 1965.

[Timothy B.]

Re: 63 T-10 Question

I apologize if I gave bad information, for some reason I thought all 63's used a course spline main shaft even the first Muncie transmissions.

[Ray K.]

Re: 63 T-10 Question

Joe,

Thanks for the update on the original 63-64 yoke part number, my books are limited from the early 60's.

Ray