M22 transmissions

Shankin · #1 11-07-2008, 07:07 PM

Of all the m22s what is the strongest? I see some with 26 spline input shaft and some with 10. Also do they all have the same output shaft?

**Hotrodpaul** · #2 11-07-2008, 11:06 PM

Probably the 70 and later 26 spine input, and larger output spline models.

Paul

**scuncio** · #3 11-08-2008, 12:28 AM

With a fine spline input/output you get a larger minor diameter, which should make them more resistant to twisting.

HPMIKE · #4 11-09-2008, 02:52 AM

The gears and shafts on those were pretty stout, the cases, on the other hand, generally were not. I remember a time when all the Muncie and T-10's I did 50% had issues with case cracks.

MB

Shankin · #5 11-09-2008, 05:29 AM

My tremec is not legal for the fast class so i am changing it for a m22. Just trying to figure out what one to use with around 500 to 550hp at the tires.

HPMIKE · #6 11-09-2008, 07:20 AM

[ QUOTE ]
My tremec is not legal for the fast class so i am changing it for a m22. Just trying to figure out what one to use with around 500 to 550hp at the tires.

[/ QUOTE ]

I would just use the Supercase and build from there. Or you could even find an iron T-10 case and build a pretty stout T10. The class allows use of different transmissions as long as they were made for a GM vehicle. One nice thing about the FAST class of racing is that the lack of traction definitely saves parts. Ed Cook's kid James grenaded the Hemi crash box I built for his RR, but that was attributed to driveshaft yoke failure. It's not likely that you would have any durability issues as long as you run the bias ply tire. Even less of a chance of trans failure with a "soft-lock" type clutdh that you would be wise to run.

Give me some details on the FAST build.

MB

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