4onthefloor, I've got an NP435 that I was going to do the same, but stop once I added up all the expenses with my 67. If you're intent on doing this and interested in a better 1st gear doing this conversion, send me an email bassmaker@hotmail.com I had all the math figured out and the 4.65:1 first would work well with 3.08 rearend (I'd also part with).
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67 Chevy truck 250(No, I'm not putting in a 350!)
68 Camaro 250(Again, I'm not putting in a 350!)
