[kipps]

I'm using an internal slave on the nv4500. It's a stock 1997 tranny, bell, and slave. I'm intending to use the complete manifold and downpipe assembly, complete with cats, from a 2010-15 Camaro. I can't guarantee it will fit perfectly, but there's a high chance it will. This downpipe assembly will terminate near the back of the transmission. I've got them sitting here, just not test-fitted yet.

You say that your trucks are dual exhaust. Is that true duals, or do you have a crossover of any type installed? If so, where's the crossover located?

At this point, the most logical location for a crossover appears to be directly above the front u-joint of the rear driveshaft.