This is all of the 833 ratios. I have thought of just going with an over/under drive on the 6 cyl ratio. Be about the same cost, maybe even a little cheaper. passons was guestamating 5k and mcleod about the same.
6-cyl (also 64-65 273, 74-75 318) 3.09 1.92 1.40 1.00
Fine-spline V8...