A/T - New Transmission Case

Number 84-7-3 Date 11/83
Subject: NEW TRANSMISSION CASE FOR 1984 THM 125/125C
Beginning with the 1984 production of the THM 125/125C transmissions a new transmission case went into production. The changes in the 1984 THM 125/125C transmission case are as follows:

Changes in the 1984 THM 125/125C Transmission Case

1. The manual shaft hole was made larger in diameter to accommodate a larger manual shaft.

2. The manual shaft seal bore was made deeper to accommodate a double lip seal.

3. The transmission case casting was changed to accommodate a neutral start switch.

4. The Low and Reverse snap ring groove was moved toward the case sprocket face to accomodate thicker low and reverse clutch plates.

NOTICE: The new 1984 THM 125/125C transmission case cannot be used to service any models prior to the 1984 model. The past style transmission case (1983 model or earlier) cannot be used to service the 1984 THM 125/125C transmission.