63 vette i use the Mark Williams chrome moly shaft with the MW Billet yoke.
67 Camaro- i use a local custom made 3.5 inch mild steel 0.83 wall with the MW billet yoke.
No matter what drive shaft i choose to use I WILL always use the Billet yokes.....i have used the 1350 yokes in the past but i have saw those break in different situations ( got 2 of them in the tool box)...so i spend the extra and go with the Billet yoke.
Thanks Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "