Transmission mount on 1961 convertible - how to connect everything?

[Andrew Trout]

Hey everyone,

I'm trying to figure out the transmission mount for the rear crossmember on a 1961 Cadillac convertible. We ordered a transmission mount from Fusick I believe, but we're not sure if we got the right one or not.

I've included a few pictures below:





So is this the right transmission mount? And if so, how does it connect? As best we can figure out, we need some flat washers for the bolts, and then bolts go through the bottom of the crossmember, through the mount, and then into the transmission. But the two holes for bolts in the transmission don't go into the space in the mount. It's literally a round peg into a square hole situation. And the bolts seem to be a little short.

Anyone have photos of what the mount should look like or how everything attaches?

Thanks!

[Roger Zimmermann]

The transmission mount is attached to the transmission by a pressed steel part looking like a cage. Il you don't have it, you cannot go further...

[Steve Passmore]

As best we can figure out, we need some flat washers for the bolts, and then bolts go through the bottom of the crossmember, through the mount, and then into the transmission.

Thanks!

The bolts would not go through the mount and in to the transmission as that would make void the purpose of the rubber. Two bolts would screw up through the cross-member and a different pair would screw down as Roger said through another part that perhaps you don't have leaving the rubber as an isolator. What happened to your original parts?

[Andrew Trout]

Durr! Figured it out: the transmission mount goes inside the transmission. I was thinking it went outside of the transmission like an engine mount.



Remove the circled bolts, remove the plate, and the replace the transmission mount. Oh man. Would have been nice to figure this out before the transmission went back into the car. Oh well: live and learn.

Thanks for the help!

[Tandymo]

Any updates on this. I’m chasing a slight vibration and want to replace this mount. It will be done with trans in place. Any tips would be greatly appreciated. T.Morrison 1958 cadillac sixty special

[Bob Schuman]

Easy to replace the rubber mount. Unbolt the steel cage from the transmission, unbolt the mount from the crossmember, jack up the transmission using a thick wood block under the transmission pan to avoid damaging the pan, remove the cage with the rubber mount inside, remove, clean, install new rubber mount into cage and reinstall.
Be careful jacking the transmission, observing when some part of it reaches the floorboard, frame, etc, so as not to bend anything. On all I have done this procedure gives enough clearance to change the rear mount easily.
A bad rear mount will collapse so the metal cage rests on the crossmember, effectively causing a metal to metal connection, which is likely to cause vibration to be felt.