Trans Mount Bushing

First question, I found this thread in which several members had problems with low quality rubber in new trans mount bushings. Are there any good manufacturers in 2021?

2nd question, how do you remove/install the trans mount bushing? I've done the upper control arm bushings and have the tools for that job, but this is a different animal. Evidently you have to push on rubber, usually a no-no.

I always use urethane transmission mounts. They are stiffer than the rubber mounts but more expensive. 440'

I imagine that would be wasted on my humble 318, but for future reference, have you noticed a squeeking problem with the urethane bushing?

On 2nd thought, if there are no known good rubber bushings, than polyurethane is the only way to go, isn't it?

Here is a Marmon DEA A2512. The metal is only 2/3's as thick as the stock mount - I believe the way they are getting around using the thin metal is by welding it to the bottom of the bushing, which may not be a bad idea from an engineering perspective, but the sides of the mount weren't straight when the welds were done. As you can see in the last pic, the holes don't line up (and as you can see in the first pic, the mount doesn't sit flat either!). I'm not sure this is useable. Somehow I'd have to bend the legs out, which might break the welds, and affect the height of the mount, changing the angle of the transmission by a degree or so.

I've got the old bushing out of the stock mount. I have the feeling I'm going to end up ordering the Energy Suspension polyurethane bushing and reusing the old mount instead of this wonky Marmon mount. At least I have the pleasure of knowing Warren Buffet made a few pennies off of me.

I found myself in exactly the same situation. I ordered a replacement mount and on a whim the poly bushing kit as well. I’m having a heck of a time getting the rubber off the inside of the bushing sleeve. I guess I’m going to torch it unless I hear or see a better solution.

Well I hope I caught you in time. If you've got the rubber mostly out and are just working on the remainder, you can remove what's left with a Dremel sanding drum pretty quickly.

If you haven't got the rubber bushing out at all yet, the way I did it was to run a hacksaw blade through the biggest channel in the rubber and then cut the rubber out one piece at a time. It's slow work, the rubber grabs like hell. I had to put the outer shell in a vice to hold it. I shouldn't have popped the outer shell out, but I didn't realize it was going to be reused until I got the poly bushing.

I've also heard of a trick where you can walk a drill bit around the outside of the bushing, but I haven't tried that one.

The instructions said it was possible to use heat to break the glue bond between the rubber and outer shell, but I don't have my own torch yet and I didn't feel like borrowing one.

Incidentally I fixed my replacement mount and put it on the car. I used a wood splitting wedge to bend the legs out enough for the holes to line up. I don't know how long it will last, but I've got the poly bushing in the old mount as back up, so no biggie if the Marmon fails.