All Small Six Continuing the journey - T5 Upgrade

[awasson]

Well, now that the 200 is running well in my 66 Mustang, it's time to sort out the rest of the drive line. The weather up here is pretty crappy still, so I'm not sure when I'll have the car up on stands so I can wrassle the 3-speed out (again) and install the T5 but I now have all of the parts I need!

T5 from a Fox Body Mustang (4 cylinder model) - Check
T5 Shifter - Check
T5 for 1966 Mustang Adapter - Check
T5 for 1966 Mustang Transmission Crossmember - Check
C4/T5 Transmission Mount - Check
9" Clutch and Diaphragm Pressure Plate Kit (1978 Ford Fairlane 3.3 L) - Check
Throw out bearing for 1966 Mustang - Check
Pilot Bearing for 1983 Ford Ranger Deisel - Check
Slip Yoke - Check



I bought the T5 kit for Ford 200 from California Pony Cars. It is specific to the 1966 Mustang but they also have a 1965/66 Mustang kit for Ford 200 which is a bit less money but I know that they bell housing, flywheel and clutch is different for a 65 so I grabbed the 1966 specific kit. I will have to pull the existing transmission out to make sure it is the correct adapter but everything else I have in the kit is a good fit.

The transmission tag is 13 52 207


It appears to be a 1992 World Class with the following gears:
Rev - 3.70
1st - 3.97
2nd - 2.34
3rd - 1.48
4th - 1.00
5th - 0.79

I looked at it compared to a 1992 V8 and the V8 gearing is much much taller except for 4th. All 4th gear T5's have 1.00 but the 1983 SVO 5.0 Mustang transmission is almost the same ratio as this one.

I have a question about the transmission mount. The original mount had a plate with a rubber piece hanging off the side, on the passenger side. It mounted between the transmission tail shaft housing and the transmission mount. Is it a damper for vibration or did it serve some other purpose. I think I may clean it up, hit it with some rustoleum from a can and then reinstall it.



I'll add more when it warms up and I can get under the car to do the re and re.

 

[DON]

Speedo??

 

[awasson]

Speedo??

It’s got a speedo gear at the tail shaft on the driver’s side with a cable drive and what appears to be a plug connector. I removed it to look at the gear. It has been out and was maybe replaced. It looks new and was sealed with orange silicone.

 

[powerband]

... question on 'slip yoke' in pic' and existing '66 drivetrain:
Is the existing Rear Axle/DS, typical early six rear (with back plate) or later 8" rear end ( pumpkin type ) ?.
.
afais - small early rears and their driveshafts use the smaller '1100' universals and all 8" later use the standard '1300' series universals.. Can't determine from pic which series 'slip yoke' have/or need.
.


,
have fun

 

[awasson]

... question on 'slip yoke' in pic' and existing '66 drivetrain:
Is the existing Rear Axle/DS, typical early six rear (with back plate) or later 8" rear end ( pumpkin type ) ?.
.
afais - small early rears and their driveshafts use the smaller '1100' universals and all 8" later use the standard '1300' series universals.. Can't determine from pic which series 'slip yoke' have/or need.
.


,
have fun

The slip yoke in the back of the T5 is the one that came from California Pony Cars in the 1966 Mustang Inline 6 kit. Hopefully it is the correct one. I will find out when I pull the driveshaft for the upgrade.

I’m also on the hunt for an aluminum drive shaft out of a 2WD Ford Explorer. Apparently, they are the right length for early Mustangs but I need to go to a “pick and part” lot with a wrench and tape measure to find out for sure. That would be a nice upgrade as well but it’s not a priority for the moment.

 

[awasson]

Oh, here’s a better photo of the plate that sandwiches between the tail shaft and the OEM trans mount in the 1992 Mustang. I think it must be a damper of some kind so as long as it doesn’t interfere with the cross member, I will use it. In the photo you can see the triangular, rubber block on the left side.

 

[bmbm40]

The slip yoke in the back of the T5 is the one that came from California Pony Cars in the 1966 Mustang Inline 6 kit. Hopefully it is the correct one. I will find out when I pull the driveshaft for the upgrade.

I’m also on the hunt for an aluminum drive shaft out of a 2WD Ford Explorer. Apparently, they are the right length for early Mustangs but I need to go to a “pick and part” lot with a wrench and tape measure to find out for sure. That would be a nice upgrade as well but it’s not a priority for the moment.

Interesting about the 2WD Explorer drive shaft. Is the benefit due to lighter weight?

 

[awasson]

Interesting about the 2WD Explorer drive shaft. Is the benefit due to lighter weight?

I would think that the weight would be a nice benefit but from the reading I’ve done, mustang guys have gravitated to them because they are better balanced that the original steel shafts and they are a much better ride at highway speeds.

 

[frozenrabbit]

You should look for an S10 shifter tail housing, Mustang T5 is way too far back.

 

[powerband]

"You should look for an S10 shifter tail housing, Mustang T5 is way too far back."...
.
not sure with awasson's '66 Mustang but S10 'tail on T5 was used in early Falcon application as alternative to modifying body support crossmember clearance issue.
.
IMHO the Mustang T5 shifter location is much better with shifter at your side, than truck shifter s10 location and can still work with most bench seat applications.
.
'63 Falcon Wagon w/ '71 Maverick 170 / NWC V8 T5 Overdrive 5spd / OEM 3.50 rear gears. / Bench Seat
'74 Maverick 250 / Z-V8 T5 Overdrive 5 spd / 2.79:1 rear gears / Vortech Supercharger. / Bench Seat
.
. .
.
* > . ... also - is there a solution to the S10 speedo gear -Ford T5 issue ?, never got a clear answer if compatible.

.
have fun
.

 

[vssman]

My Ford V8 T5 has an S10 tail housing. In my 63 Convertible Falcon (bench seat), that puts the shifter in front of the crossmember in the floor. But… the Hurst shifter was too far forward which resulted in my knuckles hitting the dash knobs. I had to elongate the holes in the shifter to tilt it back away from the dash. I don’t recall how I connected the speedometer cable but surmise an adapter is available. My cable works.

 

[awasson]

You should look for an S10 shifter tail housing, Mustang T5 is way too far back.

The T5 I have is the 4 cylinder model, which has the correct length tail shaft for the Mustang driveshaft. I believe the recommendation for using a V8 Fox Body T5 is to use the 4 cylinder tail so the drive shaft doesn't have to be shortened.

 

[Jmustang_65]

The T5 I have is the 4 cylinder model, which has the correct length tail shaft for the Mustang driveshaft. I believe the recommendation for using a V8 Fox Body T5 is to use the 4 cylinder tail so the drive shaft doesn't have to be shortened.

The lengths/cases are the same only difference are the gears and input shaft length.

 

[awasson]

The lengths/cases are the same only difference are the gears and input shaft length.

Thanks for clarifying that.

I misread the intro to a swap video where the author noted the differences in input shafts and I thought he was talking about the tail. So with that in mind, I'm confident that this will swap into my 66 Mustang without issue (with the parts I have collected for the swap).

Here's the video I have watched over and over. It's a bit comedic but all the details are covered really well. The video is a 65 Mustang but he also discusses the differences between 65 and 66.

 

[drag-200stang]

Oh, here’s a better photo of the plate that sandwiches between the tail shaft and the OEM trans mount in the 1992 Mustang. I think it must be a damper of some kind so as long as it doesn’t interfere with the cross member, I will use it. In the photo you can see the triangular, rubber block on the left side.

View attachment 24991

The slot in the rubber looks like it could of had a hanger in it to hold the exhaust. The trans moves with the engine so less flexing of the exhaust connections.. The damper on trans. that I remember seemed to be made beefier and heaver than this.

 

[vssman]

The T5 I have is the 4 cylinder model, which has the correct length tail shaft for the Mustang driveshaft. I believe the recommendation for using a V8 Fox Body T5 is to use the 4 cylinder tail so the drive shaft doesn't have to be shortened.

Frozenrabbit is eluding to the shifter location, not the tail shaft length. The S10 tail shaft has the shifter pocket forward near the transmission body vs the Ford stock location which is near the end of the tail housing.

 

[Jmustang_65]

Frozenrabbit is eluding to the shifter location, not the tail shaft length. The S10 tail shaft has the shifter pocket forward near the transmission body vs the Ford stock location which is near the end of the tail housing.

This isn't needed on a mustang, on a falcon or comet yes.

 

[awasson]

The slot in the rubber looks like it could of had a hanger in it to hold the exhaust. The trans moves with the engine so less flexing of the exhaust connections.. The damper on trans. that I remember seemed to be made beefier and heaver than this.

I’ll bet you’re right. It would be an ideal mechanism for a hangar. I think that must be what it’s for. I’ll do some digging and see if there is anything on a parts diagram that shows it but I’ll bet you’re right. Thanks for that.

 

[frozenrabbit]

"You should look for an S10 shifter tail housing, Mustang T5 is way too far back."...
.
not sure with awasson's '66 Mustang but S10 'tail on T5 was used in early Falcon application as alternative to modifying body support crossmember clearance issue.

Would it be too far back with a bench seat?

I had to make a modified shifter mount and linkage to my 3.03 to get in front of the cross member, still a little close to the bench seat.

 

[427John]

You should look for an S10 shifter tail housing, Mustang T5 is way too far back.

No, I've done this swap and the trans he has the shifter go right up into the existing hole, he may have to trim the hole a little to get full stroke of the shifter. The S-10 trans is what the guys want for swapping into Model A's and such and maybe right for a Falcon since their shifter is way up at the front of the tail housing but the Mustang uses a rear mount shifter.