Rear Transaxle Mount

I have my conversion up and running thanks to the advice from many of you that participate in this forum. Now that I have about 30 miles on it, I have noticed that it seems as though the engine is connected to the wheels through a rubber band. It seems as though there is a lot of "windup" on acceleration. My assumption is that the transaxle mount is mostly to blame. My car still has the stock rubber transaxle mount in it. I have read about filling the stock mount with urethane to stiffen it up. Lindsey racing has a solid mount available. I can make a solid mount very easily but I wanted to know if the solid mount is as noisy as they say. Would it be too obnoxious for a vehicle that is driven mostly on the street? Or is the urethane filled stock mount sufficient? Thank you, Gil

I filled with mine polyurethane about ten years ago. Its been holding up and i havent had any trouble.

the solid mount is noisy, been there done that. i ended up machining my solid mount out and running bushings like the semi solid mount. its not nearly as noisy, but it brought back a little of that "rubber band" feeling. not nearly as bad as a worn out stocker, but not as solid feeling as the solid.

I have an extra rubber mount that I will fill with urethane. I will also make a solid mount and insulate it with bushings so I can compare them. Where can I get some urethane bushings? What are the dimensions of the bushings? Everyone here has been very helpful. Thanks, Gil