Supercoupe Tranny

trendkilllx · Jul 25, 2005

Just wondering if anybody knows if a 91 t-bird supercoupe manual will swap into the place of my 87 5.0 T-5. We put a turbocoupe trans in my friends fox and it worked great, but im not sure if the supercoupes are different, thanks.

tb9050lx · Jul 25, 2005

trendkilllx said:
Just wondering if anybody knows if a 91 t-bird supercoupe manual will swap into the place of my 87 5.0 T-5. We put a turbocoupe trans in my friends fox and it worked great, but im not sure if the supercoupes are different, thanks.

the tranmissin in tthe sc is a mazda and wont work in your fox .the t-5 is completly diffrent , it would bolt up but the clutch is hydralic instead of cable operated and i dont think the mounts for the tranny would work.

v8only · Jul 26, 2005

tb9050lx said:
the tranmissin in tthe sc is a mazda and wont work in your fox .the t-5 is completly diffrent , it would bolt up but the clutch is hydralic instead of cable operated and i dont think the mounts for the tranny would work.

My father made the sad mistake of picking one of those up for me, thinking it was a t5. Don't waste your time, they suck. They've discontinued most of the internal parts for that, and sincro's have to be ordered from mazda, japan at $200 a piece. I spent a GREAT deal of time trying to find someone to buy that damn trans off me so I could recoupe my cost. Good news is, if that thing is in decent shape, you shouldn't have a problem getting cash from it from the hardcore tbird guys. Go to sccoa.com (supercoupe club) and tccoa.com and put up a for sale ad, then go buy yourself a mustang trans. Good luck.

grey5.0beast · Jul 26, 2005

sounds like a rip off.

monsters · Jul 26, 2005

The shifter box is about 6" too far back. And yes they still do make parts for them, that trans was put in 5-speed f150's broncos rangers and bronco II's for years although its name was changed a few times. Started out as a M5OD and had brass syncros and an 11" clutch. The super coupe 5 speed is a M5R2 (Manual 5speed revision 2) which had fiber synchros and could withstand more abuse than a standard T5 which is why they put it in the SC. A stock SC's dry weight is about 3900lbs and the engine puts out 325ft lbs. of tourque (in 94-95) and actually the 3.8 SC had 5 more hp than the 5.0 mustangs in thier best years. The M5R2 is a good trans, as long as you maintain it. It just wont fit in a mustang.

Curse · Jul 26, 2005

monsters said:
The shifter box is about 6" too far back. And yes they still do make parts for them, that trans was put in 5-speed f150's broncos rangers and bronco II's for years although its name was changed a few times. Started out as a M5OD and had brass syncros and an 11" clutch. The super coupe 5 speed is a M5R2 (Manual 5speed revision 2) which had fiber synchros and could withstand more abuse than a standard T5 which is why they put it in the SC. A stock SC's dry weight is about 3900lbs and the engine puts out 325ft lbs. of tourque (in 94-95) and actually the 3.8 SC had 5 more hp than the 5.0 mustangs in thier best years. The M5R2 is a good trans, as long as you maintain it. It just wont fit in a mustang.

The M5R2 was not in the F150s or Broncos, they had the M5R1. The shifter location is different. The M5R2 is 100lbs of junk. If you beat on it hard, the syncos will fry in less than a year. Plus very few people know how to build them right. I swapped the M5R2 in my 94 Tbird SC 3 times in 2 years. To the thread starter, sell that piece of crap and get a t-5 or something stronger. Good luck

monsters · Jul 26, 2005

I had a '95 SC and never had a problem with the M5R2. The car was modded with kooks headers, 70mm tb, 75mm maf ,enlarged blower top, magnum powers intake plenum, SCP 290-292 cam kit with valve springs, supercoupe performance front mount intercooler and 10% od supercharger pulley, underdrives, 2-1-2 2-1/2" and 3" exhaust, eibach springs, 17x9 cobra r's, sumitomo HTR-z 255/40zr17 tires and my M5R2 held up fine with mid 13 sec. 1/4 mile runs and tons of winding roads. The car dynoed a solid 250 rwhp which is pretty respectible considering the head gasket blowing tendency of the SC 3.8.
M5R1, M5OD and M5R2 have many of the same components minus the material composition of the syncros, gear ratios and shifter location. One of the biggest mods SC guys like to do is rebuild thier M5R2 with an F150 kit for the brass syncros so they won't have to worry about the fiber ones wearing out. Unless you put 70,000 miles on per year or shift like crap the fiber sychros will last.

Right now my daily driver is a '95 f150 4x4 with 5.0 5-speed (M5OD) with 7" total lift, 35x12.50x15 Yokohama geolanders and true-trac diffs front and rear. The truck now has 212,000 miles on it without a single M5whatever trans failure. I regualarly tow my 87 GT vert with no issues from that trans.

Curse is right about the synchros, but that trans will handle more torque than a regular T-5 IMHO.

Curse · Jul 26, 2005

monsters, I think you have it the other way round. Most SC guys use the fiber syncros, because the brass one make the tranny shift a little harsh. When I sent my M5R2 to Southern Gear in GA, they told me the M5 series tranny parts are not interchangeable, other than the syncros. My 94 has all the mods you got minus the cam and FMIC(had not come out when I stopped modding the car), I did have ported heads though. I ran a 13.9 with my 3rd gear gone. Fun cars to drive, but get very expensive to mod.

GearHd6 · Jul 26, 2005

Im pretty sure a friend of mine put an SC 5spd in his 85 Capri and it worked fine but was geared way to low internally for the 5.0 it worked good in the SC because it kept the RPM's high for the turbo 4 cylinder.

Curse · Jul 26, 2005

GearHd6 said:
Im pretty sure a friend of mine put an SC 5spd in his 85 Capri and it worked fine but was geared way to low internally for the 5.0 it worked good in the SC because it kept the RPM's high for the turbo 4 cylinder.

You are thinking of a turbo coupe, which uses a T-5

GearHd6 · Jul 26, 2005

Yep you're right, that is what im thinkin of. Thanks for the clarification.

monsters · Jul 27, 2005

Curse- Sorry, but you are wrong about the synchros, go to any SC forum and ask them. The SC synchros are of fiber (plastic) composition and they do suck, thats why they change them to the brass ones during a rebuild. Mine was rebuilt with brass ones when I purchased the car, the previous owner handed me the old plastic ones to show me that they are crap.

Well, Southern gear told you wrong. One thing I found out about GA while being stationed there is trust noone when it comes to vehicle mainenance. They do all they can to get the most money out of you. about 60% of the parts in that trans carry the same part # and most of the ones that dont are the gears themselves. Say you want a lower 1st gear, buy one for an 1988-1992 f150 with a 4.9, It's basically the case (beacuse of shifter location) and the mainshaft (too long on trucks) that aren't interchangeable.

Please don't argue with me on this, I used to be a supercoupe god, at one time I owned all the wrecked SC's in GA, FL, AL and TN and parted them out to help people keep thiers and mine going.

monsters · Jul 27, 2005

And another thing, **** this site. All I've gotten out of most of you people is garbage info that was wrong ever since I purchased this ****ing mustang.

Curse · Jul 27, 2005

OK "Super Coupe God" let,s just agree to disagree. What is your screen name on the SCCOA maybe I will see you there sometime. Mine is the same "curse" member since 2001.

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