Thanks guys! Yeah, in my stupidity I put down that it was a 235, I knew it was a 250 but got all those 2's, 3's, and 5's mixed up. (250, 350...) I've also found a donor truck (67 gmc lwb) that I might be getting for $300-400. It's a little rough (rusted floors, dented doors, non-running 250 motor) but I think it's got a "newer" 3 speed in it. I was told I should try to find a sycronized trans because they hold up better. I'm not trying to make a real tire burner out of this truck, just a nice street cruiser with a lot of nostalgic parts. That's why I'll be putting in the 283 later (I know it's not the right year since they stopped in '67, but a 283 is a lot cooler than a 307, right?)