Anybody know if it is possible to bolt a 5 speed (fox body mustang) to a Y-block bell housing?

Hi,  Yes there are quite a few of them running around.  You can get an adapter from John Mummert (www.ford-y-block.com).  Goes between the Y-block bell housing and the 5 speed.  Good luck, Nick Brann - K.C., MO

Sure is possible, though it's not a bolt in. Modifications have to be made.



http://www.y-blocksforever.com/forums/Topic15164-4-1.aspx?


Lawrenceville, GA

The car Y-block uses an adapter from Mummert, but the truck installation requires modification to your truck 3 speed bell housing (which Mummert does). You have to send yours to him, he modifies it and sends it back.

Gerald Ingram aka "Gritsngumbo"
Monroe, LA
LITTLE RED: 64 Ford F100 Short Bed Styleside
BIG RED: 63 Ford F100 Long Bed Unibody
BBW RED: 61 Ford F100 BBW Long Bed Custom Cab Unibody
BIG “UN: 63 F250 Longbed Flareside
CREW CAB: 63 F100 "Stageway" Crew Cab w/Long "Wrong" Bed

Did this on my 56 Vicky.  My rearend is 3.73:1 and have the .67:1 OD T5 so cruises at 70MPH doing + - 2,000 RPM.

Uses same pressure plate and throw out brg but needs different clutch disc as Y input spline and 'Stang input are slightly different width (both are 10 spline but diff in widrh).  Will need to fab a cross member (transmission mount), longer driveshaft and different speedometer cable.  I am tall and used stock tranny with seat all the way back.  Bought a shifter stick I like from Hurst.

WELL worth the trouble and expense.

TC

You gotta have the right tools and know how to use 'em.

TC - Austin, Texas

Check the picture on the link Charlie noted of grinding the input shaft shorter. I did the same thing, and while I turned the output yoke, a steady (younger) buddy ran the cut off wheel. Got a near perfect square cut much easier than we thought. We bolted it up without the pilot bearing and used clay to check for clearance so it didn't bottom in the crank. If it does, it will eventually seize and the clutch will not release (well, it will, but the input still turns). Ran a car into the garage wall one time on a seized shaft, and I've been spooky ever since.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

Thanks for the info...

Trimming the input shaft not necessary if going in a car and using Mummert's adapter.  It is just the right thickness to not require trimming.

You gotta have the right tools and know how to use 'em.

TC - Austin, Texas

I can get a brand new V8 5.4L XR8 TREMEC TR-3650 5 SPEED at a good price. Does anyone know how hard to fit one of these?


South Australia

What follows I posted on Sept. 13th in response to another inquiry about transmission selection. I'm not 'up' on all the TREMEC numbers. The T-5Z will work for your application, my understanding is that some newer T-5 application units will not. I'd call Modern Driveline.

The T-5Z has a lot to be said for it. What follows is a small piece of what is presented on the Modern Driveline web site in the 'Tech Alley' section labelled 'T-5 History'
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The "Z" Spec T-5

"In 1993 Ford started offering a new service unit to the Ford Motorsport crowd. The nick name T-5z comes from Ford’s part number, 7003Z. This Ford Motorsport T-5 is also sometimes referred to as "World Class T-5". While it is a Word Class T-5, as it has all the upgrades, having a 2.95 first and “Cobra pocket bearing does not make it “World Class”. The T-5z is a 1993 Cobra T-5 with 2.95 first gear set and .63 over drive. It has the best of everything. Hardened gears, short throw factory shifter, steel front bearing retainer, and tapered output shaft bearing and a seven tooth drive speedometer gear. Best of all it has a torque rating of 330ft/lbs. based on 100,000 mile usage. The stock T-5Z can handle up to 450hp with a soft locking clutch and is not shock loaded like in drag racing."

________________

NOTE: The T-5Z 5 speed transmission weighs only 75 pounds! Also, IF you look at the Modern Driveline web site, you'll see that they also offer the option of a .73 overdrive ratio or a .59 overdrive overdrive for an additional charge. The .63 5th gear overdrive ratio is the standard TREMEC offering.

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A four speed or five speed transmission with the right rear end gearing will change the driving enjoyment of your y-block! With my tire size and 3.56:1 gears, I opted for the .73 overdrive ratio T-5z Modern offers.

I hope that pointing you toward the Modern Driveline web site is of some help.

NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York