3-4 TV Bushing, TV valve & Shift Valve.
If you have a '88 & up Valve Body, Clean & reinstall Valvetrain.
If your Valve Body is earlier & You want full throttle 3-4 upshifts, Install TransGo 7-4-V.
http://www.transgo.com/products.php?...dcountview=Yes
The Late 3-4 TV bushing has a protruding end, The Early Bushing has a flat end.
And of coarse install roll-pin through the top of the Valve Body.