That sounds like a reasonable approach, the process of elimination. You can always go back. Your driveshaft could also be the cause of vibration. Not sure how you would check that.
I bought a Jegs kit for cheap. Then I ordered the custom main hoop from S&W. Bought my own
JD Squared pipe bender and dies, and built a 10 point cage. It came out really well. I was happy with both Jegs and S&W. Jegs was a good deal for materials and I used most of the metal. The main hoop...
I'm interested in the Dart shield. I'm coming through there next week. What is on the right edge of th Dart windshield that makes the shadow? Is it just a sticker of some sort? Thanks.
Edit: Sorry, I didn't see the 'old school' hemi part. I thought you were talking about a Gen III.
I'm in the process of shortening mine now. I cut back the outer column 5 inches so it cleared the head. It just sticks out barely from the firewall. (However, I centered the engine in the bay...