[lineslinger]

Have you contacted Tremec directly or are you trying to get results through Keisler. I would give Tremec customer service a call and see what their reaction is. You can be sure they are well aware of the amount purchasers and sophistication of the customers that are on the CC website.
I'll bet if you can get a hold of the right guy you might realize some satisfaction in dealing with your situation.
Man, four grand for a gearbox and a supplemental "kit", whatever that is, is a lot of cash out pocket to have the manufacturer tell you to get stuffed.
Giving Keisler a call and relay your plan, that may also shake a few cages on their end. Don't let these suppliers turn their nose up at you, I did battle with Nikon for over 3 months over an underwater camera that failed at FIFTEEN feet when it was supposed to be good to 220'.
I finally ended up talking to Mr. Shinoda, exe. VP of Nikon of North America and got a new camera out of it.... which they should have done in the first place.
Stay after them, be persistent and good luck.