Ol' Green '70 GMC C2500 Father/Son

[connorm]

Originally Posted by clay68c10

I like your aux gearbox idea, definitely unique.
Have you ever seen a Ranger unit available used? Probably rare but it would be worth keeping an eye out for one.

A 400 with a mellow cam and Vortec heads would be a great choice for what you're doing.
Or an 880 roller block based 350/383.

The Ranger's seems fairly hard to find. The aux gearboxes are also somewhat hard to find. I think most of it seems to be that people don't really know what they are and there's not much value to them for most people. I also live in the midwest and we have more 2 speed axles in the medium duty trucks, rather than aux gearboxes. I did find a 6041 4 speed Spicer unit on Ebay. It's about 1k but its in Montana so shipping is around $500-600. I am going to keep looking locally.

A 400 with an rv cam, decent heads, knock off ZL1 intake and quadrajet and HEI is what I'm leaning towards now, but that's a ways off. The 307 just keeps chugging along. And doesn't have enough power to hurt anything. I am planning on doing "supporting mods" before I do an engine swap. I'm just trying to keep that in the back of my head.