3.55 ring & pinion

I installed a set of Motive gears in my Cuda last year. First time I set up a 8-3/4. They seemed to be very touchy also. I really couldn't get the pattern like they showed on the paper. If I set the pinion depth right for the drive side the coast side pattern was way off. I did the best I could at finding a happy medium leaning more to the drive side since it's what takes torque. Since this was the first time I had ever done it I took them by a guys place that has set up numerous sets and he couldn't get them any closer either. I installed the 3rd member in the car and it's very noisy. Worse than the old gears I took out and I thought they were bad. I'm not happy with them at all but I got busy and never found the time to call them to see if they'd do anything about them. It's been too long to expect them to do anything about them now. I'd suggest if yours are noisy and you don't like it to contact them right away and see what they say.