A/T - No Fourth Gear/Burned 2-4 Band Assembly

Number 83-T-26 Section 7 Date 04/83
Subject: NO FOURTH GEAR AND/OR BURNED 2-4 BAND ASSEMBLY - THM 700-R4



If a condition of no fourth gear and/or a burned 2-4 band assembly is encountered on any THM 700-R4 transmission, the cause may be a blocked 2-4 servo exhaust hole (see illustration)..
The use of R.T.V. silicone sealant and/or some aftermarket oil pan gaskets may block this 2-4 servo exhaust hole causing the above conditions.

When installing the oil pan on any THM 700-R4 transmission be certain to use original equipment oil pan gaskets so the 2-4 servo exhaust hole is not blocked. Also, do not use R.T.V. silicone sealant on any THM 700-R4 oil pan.