I have installed a new hs7955tg in my AX-10 and now have a radio glitch like some sort of interferance. The problem is Not under heavy loads, throttle and steering both glitch out just sitting or if you touch the truck. I had a Hobbico cs-70 in it before and had no problems. This is my first digital servo and I really like the massive torque, but all this radio noise has made the crawler undriveable. Do I need some sort of regulator or Y-harness to fix the problem, or is it time to bite the bullit and buy a quality dsm radio?

My setup is
futaba AM 75mhz transmitter
Novak XXL receiver
Novak super rooster
Novak lipo cutoff 2cell
7.4 1250 lipo pack
hitec hs7955tg servo

It sounds like you may be getting some feedback through your wiring. You may need to move and re-route some of the wires. Can you post a picture of your instillation?

Too much work to post pics. I removed the novak low voltage cutout and it seems to have stopped gggliiitttccchin. The cutout has so many wires that it is hard to keep them neat and tidy. I tried many diffrent locations for the unit and ran wires all sorts of ways, seemed to glitch less with wires as far away from others and glitch most with them bundled together. maybe I just need a new speed control with built in cutoff?

Yup, that is usually the case with having to separate wires with these setup's. A ESC made to run Lipo's may be a good investment if you are worried about damaging the battery.