Projects T10 ID?

My friend, who is only into Chevrolets, gave this to me last night. It has a 10 spline input shaft, with the longer pilot bearing surface for small block Ford, 28 spline output shaft, a 15 1/2" tailshaft housing, a 9 bolt aluminum shift plate, the early and later bolt patterns for Ford, and 1 groove on the input shaft. Unfortunately, it came without a shifter. Will try for better pics tomorrow

 

The dual bolt pattern means it's probably a service replacement, and a full picture of the tailshaft housing will nail down what it fits...

 

Here is a shot with the tailshaft housing. My tailshaft spline count was wrong, it actually has 27 splines.

 

I think 60s full size Fords used the forward shifter location like that.

 

'63-65 Fairlane with the mid-point shifter. Mustang has the shifter all the way at the end of the tailshaft, Falcon it's at the other end right against the trans case, and the full-size use the longer tailshaft housing.

 

Thanks for the replies, gentlemen. Judging from the silicone on the side cover, someone has at least looked inside it at some point, I will take a look tomorrow.

 

One last thing to check; the front input bearing retainer comes in two diameters. The '63-64 is 4 11/16" OD, the '65-73 is 4 7/8". The retainer is what indexes the trans to the bellhousing, so you need the right one to match the bell. Either size will fit the case.

 

Thanks Steve. This one is 4 7/8", and fits the FE truck bellhousing I have. I am hoping the longer input will make up for the extra length that the truck bell has. Rounding up a shifter is next on the list, all I have at the moment is an unidentified stick.

 

If you're using a truck bell, get a bearing rather than a bushing for the pilot shaft. The bushings will egg-shape if you don't have full engagement.

 

Great info for the future. I will write it down. If I try to memorize , it will just fall out

 

Ok, here is another FYI, after counting gear teeth, I found this one to be a wide ratio version. It looks really good in there, and the case looks like it has never been bolted up.
1st-2.73
2nd-2.04
3rd-1.50
4th-1.00
Rev-2.80
Cluster gear tooth count-31, 24, 19, 17.
Input-24, then 28, 30, 36.

 

The close ratio versions are pretty rare, and generally only found behind big blocks. Main fault with the early T10s is a tendency to pop out of gear when decelerating if the syncros are worn. They're a bit marginal behind big blocks (which is why Ford developed the Toploader), but will do fine behind a small block.