Are there any ring and pinion upgrades for increased power?

The frame seems very good. Very solid. All I got from them is that the clutch is not hooked up. I just wasn't sure if this is a common conversion or not and something you can get a lot of information on to help troubleshoot and finish.

Hi all. I have been looking at buying my first m37. Have been reading /looking at these the past year and one came up. I was told it has a Chevy 350 that starts, but after further questions was told the clutch isn't hooked up. They somehow moved it under power to a better spot where it's been sittin...