Transmission Ratios
Muncie 4 Speed
1st 2nd 3rd 4th
No Lines 2.56 1.91 1.48 1
1 Line 2.2 1.64 1.28 1
2 Lines 2.52 1.88 1.46 1
Second Design T-10 (Super T-10)
1st 2nd 3rd 4th
2 Lines 2.43 1.61 1.23 1
3 Lines 2.64 1.75 1.33 1
5 Lines 3.42 2.28 1.46 1
6 Lines 2.88 1.91 1.33 1
AFAIK, Muncie and Saggie boxes have speedo gear on the driver's side. T-10 is on Pass. side, IIRC.
M-20 and M-21 Muncies use the same driveshaft yoke as Saggie box and TH-350.
M-22 uses a yoke from a TH-400 (one that is the same size, it's larger than the others).
At one time, I have owned one each of ALL of these tranny's........the T-10 I had I bought with a broken "ear" (common problem). I welded it back on and sold it..........I just had to have an M-22............ :rolleyes:
Saggy boxes die easily if not driven judiciously.........at that time I did NOT drive with prudence and many $40 transmissions died....
Couldn't kill the M-22 and I sold it for 3 times what I paid for it
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