Good pic at least...
Actually I don't have any numbers. I went to Gregory's Driveline in Virginia Beach and they made the recommendations for the shaft and built it. The first shaft used a Sonnax aluminum front yoke. Looked strong but Red twisted the spline. Replaced it wit a steel viper yoke.. the tube is aluminum 4" dia. .. It's been a few years and I don't remember the wall thickness. A 1350 joint is the goto joint for high performance sreet cars... steel tube is stronger than aluminum but 4" aluminum has better performance and yes you can feel the difference. Or at least I believe I can.Would you just happen to have part numbers for both Greg?