I am going to replace the shattered back glass (the glass with the defroster grid lines). I noticed a thin plastic seal that is just outside the urethane. Is it neccesary to put in a new seal and if so does it go on before or after the urethane? Apparently its not available from Toyota anymore, Toyota called it the rear outside window molding #64801-06010.

 

Toyota lists that;part number as the rear window.

If possible, find your part at the link below:

https://parts.olathetoyota.com/v-200...-hardware-back