US Car Tool A518 Cross member
All depends on which 727 you have. If it is before 1978 it is probably non-lockup.
If you want the complete skinny on lockup transmissions. This article and the clip from the article should tell all about lockup units and how to ID them.
Mechanical override: Lockup torque converters
“....A lockup A-727 transmission has about 5/8” of the end of the smaller input shaft machined smooth. If the splines go out to the end of the shaft (except for about a 1/8" bevel), it’s not a lockup transmission. (Thanks, Joe Reiss and Rick Allison of A & A Transmission.) Torque converters from 1978 to at least 1988 should have a “LOCK-UP” sticker if they are lockup designs. “
All depends on which 727 you have. If it is before 1978 it is probably non-lockup.
If you want the complete skinny on lockup transmissions. This article and the clip from the article should tell all about lockup units and how to ID them.
Mechanical override: Lockup torque converters
“....A lockup A-727 transmission has about 5/8” of the end of the smaller input shaft machined smooth. If the splines go out to the end of the shaft (except for about a 1/8" bevel), it’s not a lockup transmission. (Thanks, Joe Reiss and Rick Allison of A & A Transmission.) Torque converters from 1978 to at least 1988 should have a “LOCK-UP” sticker if they are lockup designs. “