TRANSMISSION MOUNT FOR 64 DEVILLE with TH400

[Norman Silverman]

Hi 

Who makes the best quality transmission mounts for my 64 Sedan DeVille (with a Turbo hydramatic)? Rock auto does not list them.

Thanks!

Norm

[Jason Edge]

I know Steele Rubber will revulcanize for $135. Kinda steep so you might check around. Here is the link: 
https://www.steelerubber.com/search?q=70-0804-11

[1odsfdfteq279]

Caddy Daddy has a repro for $79, and rebuilt for $145, plus $100 core. I purchased the repro and it looked pretty good, everything lines up. It is presently on the transmission, but the driveline is still out of the car, so I have not used it under power yet.

Here's a link to the repro -->  https://www.caddydaddy.com/shop-parts.html?cat=580&prod_year=498

[Norman Silverman]

Thanks. I don't think my current one is bad, but it is still original and there's no reason not to freshen it up. Question: Do you have to take the driveshaft out to replace?

Thanks

Norm

[1odsfdfteq279]

No, You shouldn't have to. Loosen all four bolts first, then remove them. Get a small piece of plywood or something that fits against the transmission oil pan, then jack it up a little with the wood and a floor jack. You should be able to slide the old mount right out. I don't think you would even need to disturb the crossmember itself.

In my case, the trans had a massive leak in that location, and the oil destroyed the rubber part of the mount. If that seal is bad, the driveshaft DOES have to come out for that.

[Norman Silverman]

Thanks! 

[Norman Silverman]

One more dumb question. Does it "relieve" the weight on the tranny to loosen the driveshaft center support bolts thereby allowing a bit of upward movement of the drive shaft when the tranny is lifted? Or am I overestimating the amount of travel required of the transmission in order to permit the removal of the mount?

Thanks

[1odsfdfteq279]

That would probably be a good idea. It would provide some slack for movement.

[Norman Silverman]

Thanks!