Firewall Insulator

This seal is not correct for the 1964 Mercury Montclair 4 Door Hardtop. I do not see a rear window seal available as a direct fit for your vehicle...I don't think anyone is making them. I believe you will need to try a seal from a different vehicle and make some modifications. I am not certain which vehicle would have a seal close enough to work so there may be some trial and error. I would look at 64 Ford Galaxie, I see we have a seal for the 4 door post sedan - this may be close enough to work but I am not sure. We have a fantastic return policy if you want to try something you can always send it back. I have put a link below to the seal for the 64 Galaxie 4 door post sedan.

https://www.rubbertherightway.com/i-3...
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