Check the listing for details. M20 M21 M22 Muncie Transmission Seal and Gasket Kit HP 27 SPLINE W/ SEALANT. Condition: New. Listed at 27.95 USD. THIS IS FOR A 27 SPLINE OUTPUT SHAFT MUNCIE 4 SPEEDBrand new high performance gasket and seal set for the Muncie 4 speed with a 27 spline output shaft that has gasket surfaces printed with silicone sealant. Comes with a .030" and .015" thick front retainer gasket as well as an unsealed 1963 front retainer gasket so every type Muncie configuration is covered. Rear seal, 3 shifter shaft seals and speedometer O ring are included. Shrink wrapped on hard cardboard stock to avoid damage unlike other sets sold loose or bagged. These provide a better seal then standard gaskets and a clean final assembly look because you do not have to use additional sealant with them. These gaskets save assembly and clean up time compared to using standard tube type sealants along with gaskets. No more wiping sealant off your finished rebuilt Muncie. If you want the best and not cheapest gaskets for your Muncie then grab a RedLine set. These were designed by Paul Cangialosi author of the popular Muncie book.