I used stock rubber motor mountsin my chevelle for over 100,000 miles without any problems. have heard a lot of good things about poly mounts, but I'm going to stick to rubber mounts when I drop my 383 into my TF truck. As for the trans x member I was just going to use a typical tube x member from classic or another vendor, but I plan to follow in up with the installation of a boxed driveline loop a little further back from AM Morrison. Then I will feel a little better about removing the stock trans crossmember when I convert to V8 with a T400.
Admin for Turbobuick.com 87 GN, and new toy: 1955 Chevy 3200 pickup, soon to have: 383, Cola crank, Childs/Albert 6 inch rods, Brownfield heads, 10:1 KB hypers, CompCam 284 Extreme Energy, Tilton Plate transmission realignment and built Turbo400.
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