Not sure if this subject has been covered if so please redirect me to the Thread. I have a 95 Blazer, The Original Transmission Has 425,000 Miles on it, Yes the Milage is true Fluid changed every 30,000 miles since New. I started hearing a loud Chirping noise, thought it might be a water pump but it's not. At idle there is a Chirping noise not a whining noise, When driving the noise is less, The Tranny shifts fine in all gears. I dropped the Bell housing cover and the noise seems to be tranny related. Has anyone had the same issue?