Polar Bear Suburban

[Chevy3+3]

Originally Posted by DirtyLarry

It could very well be a normal noise. Run it by a trans shop and have them listen to it before you start getting worried. They do make some normal noises and some make more noises than others. Even the ZF 6 speed in my Silverado has made a noise like an alligator gurgling rocks since the truck was brand new. If you’re getting some vibrations to go along with the noise like I am getting with my new reman 4500 then that is a different story.

What type of vibrations are you getting. I do have a light occasional vibe I notice in 3rd & 4th gear at a certain RPM. Mostly a high RPM like 25-2800. Which is past my normal shift RPMs for a 454. If I push the RPMs closer to 3000 them my vibration goes aways. My flywheel is new along with my clutch and pilot bushing.