Originally Posted by Oldtruckz
I understand that all of these rear-ends will probably be 3.90s, so I hope to get
Lugnutz input on that ratio since he is running a 2.73.

Oldtruckz,
My rear axle gear is 3.73 (not 2.73). You will LOVE the V8 Camaro T5 gearing with a 0.72 overdrive combined with a 3.90 rear.
You are correct, the V8 Camaro input shaft is the correct length for a direct bolt-on to a bell housing. My complete driveline installation post should help you with those steps.
I cannot give advice about converting from torque tube to an open drive line. That is unfamiliar territory.

Twotone has explained all the RIGHT REASONS to use an adapter plate for an S10 T5 application. The adapter plate has a place in this world, but as with many things in life, there are ways to get around it.