T5 InputShaft Question

[bigal0043]

As a follow up to my other post regarding throwout bearing, I ran into another snag. On my 351C i have the larger 164T flywheel and 11" clutch and purchased a SN95 bellhousing and matching alternator to fit. On my start stand everything aligned correctly and was able to get everything running (with flywheel and bellhousing). The T5 i have is from a Foxbody mustang and the input shaft is 7 1/4". When everything is all mounted together the input shaft is slightly too short to get into the pilot bushing (just barely in it). I researched and found i can change the input shaft to a SN95 to gain the length for it to fit correctly. But as I am thinking about it, being that this bellhousing is around 11/16" longer will that impact the drive shaft?

Alex

[Jeff Kleiner]

As a follow up to my other post regarding throwout bearing, I ran into another snag. On my 351C i have the larger 164T flywheel and 11" clutch and purchased a SN95 bellhousing and matching alternator to fit. On my start stand everything aligned correctly and was able to get everything running (with flywheel and bellhousing). The T5 i have is from a Foxbody mustang and the input shaft is 7 1/4". When everything is all mounted together the input shaft is slightly too short to get into the pilot bushing (just barely in it). I researched and found i can change the input shaft to a SN95 to gain the length for it to fit correctly. But as I am thinking about it, being that this bellhousing is around 11/16" longer will that impact the drive shaft?

Alex

It may. I built a roadster for a customer who supplied an SN95 bell and trans along with an FFR driveshaft. After mocking it all up the shaft was virtually bottomed out at ride height so I had it cut down.

Have you considered solving both problems by just going to a Fox bell?
Jeff

[bigal0043]

Cost was the biggest factor on sticking with what I have, the other bellhousing looks to be around $300, plus having to get new starter and dust shield. The input shaft looks to be around $100.

[rich grsc]

The driveshaft may be too long.

[bigal0043]

After more research I’m back to, with the 164 tooth flywheel and 11” clutch I have to keep the bellhousing I have unless buying all new. Guess next steps is to test fit and see what it looks like.

[Norm B]

I have the sn95 bellhousing and a T5 and have the normally supplied FFR driveshaft. It fits fine with about 5/8 inch of slip before bottoming out. This is with solid axle and 4 link suspension.

Norm

[Dgc333]

Assuming you are using a pilot bushing that is mounted in a hole in the end of the crank and the snout of the T5 just enters it you can by a pilot bushing that fits in the torque converter register that will give you about 3/4" of engagement.

[bigal0043]

Update. After ordering several input shafts, turns out I have a t5z and needed a 24 tooth shaft and needle bearing pocket (not tapered). Dropped in the motor/transmission. Had some clearance issues with the bell housing where the starter is. I ended up swapping around the motor mounts to move everything forward 1 1/2” and fixed most of my issues. Also made the drive shaft not be soo tight.

Hoping my engine harness arrives soon, it’s been on back ordered. But lots of other parts to continue bolting on.

[Norm B]

Moving the engine 1 1/2 inches ahead is going to create issues with your exhaust and maybe some other components. I just clearanced the bell housing at the starter side. Removed about 3/8 inch from the one boss that was making contact with the 3/4 inch square tube frame.

HTH
Norm