A/T - Erratic Shifts

Number 83-T-51 Section 7 Date 08/83
Subject: ERRATIC SHIFTS ON 1983 THM 200-4R TRANSMISSION (BR MODEL)
Some 1983 THM 200-4R (model BR) transmissions may experience erratic shifts or felt as soft 1-2 and 2-3 shifts.

To reduce these erratic shifts, a new intermediate servo assembly went into production in late October, 1982.

When servicing any 1983 THM 200-4R (model BR) transmission with any erratic shift condition that has a "3-BR-1" or a "3-BR-2" ink stamp on the top, front bell housing of the transmission, replace the intermediate servo assembly with service part numbers shown below:

PART NUMBER
1 - Intermediate Servo Piston/Oil Seal Ring Package 8632980
1 - Intermediate Servo Cushion Spring 8639264
1 - Intermediate Servo Piston/Oil Seal Ring Package 8632928
1 - Intermediate Servo Cover/"O" Ring Seal 8628136