You guys intersted in poly mounts ?
Yes im running the poly mounts on my gen 1 truck i have been for almost 2 years they work great buy them , im not shure on the engine mounts id assume they would but when you assume you know the results Benney Hill described the definition the best years ago on his show . So on the engine mounts im not shure the transmission mounts buy them there working with my nv4500 conversion .
When i met with Johnny , he said hejust had not tried it yet on his gen 1 is all , but if you look up the part numberall rubber mounts take the same partnumber of the round donut style mounts . GMtakes the same donut style ones and you can buy those as well from the other guys