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I can pick up a good running 73 Commando for my 1980 CJ5 tub/frame. I was wondering if this has one of those long input shafts that will make it too long for the short jeep. I am planning on using the entire thing from the engine to the D44's. Any help or swap advice? Btw..it is a 4 speed transmission if that makes any difference.

Thanks,

Cary
 

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Im not 100% sure but I think only the j trucks and f/s wogoneers had the long input shaft. I would say if it was a factory jobber it probably the t-98. BUt some one may have swaped in a t18 or 176 Or even a chevy trany. Who knows
 

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jeep2.5 said:
Im not 100% sure but I think only the j trucks and f/s wogoneers had the long input shaft. I would say if it was a factory jobber it probably the t-98. BUt some one may have swaped in a t18 or 176 Or even a chevy trany. Who knows

Jeep started using T-18's in 1971.


http://www.jeeptech.com/trans/t18.html



Usage
The T-18 was optional on CJs from 1971-1979. The T-18A version used from 1977-1979 is the best transmission ever put in a CJ by the factory since it features a granny low first gear(6:32:1.) Earlier T-18s have the same great strength, but a 4.03:1 first. The T-98 is the predecessor to the T-18 that was an option for CJs from 1955-1970.

Other Jeep trucks also had the T-98 as an option from 1955-1970, the close ratio T-18 optional from 1971-1975, and the wide ratio T-18 from 1976-1979. After 1979, the wide ratio T-18 was only avilable as an option in the J-20 pickup truck from 1980-1981. This version of the T-18 has the round New Process bolt pattern and 23 spline output, but the adapter is long for a short wheel base Jeep. Earlier T-18s and T-98s used the "Texas" bolt pattern and 6 spline output. The truck version of the T-18 uses a long input shaft compared to the T-98 or CJ T-18s.

Transmission 1st 2nd 3rd 4th 5th Rev
T-98 6.40 3.09 1.69 1.00 N/A
T-18 4.02 2.41 1.41 1.00 4.73
T-18A 6.32 3.09 1.69 1.00 7.44
 
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