I haven't had any issues with my current pro gears but I'll call Strange today and see what they say. BTW they are 3.70's and not noisy at all but I have a set of borrowed 4.11 pro gears in it now that are noisy. Different manufacturer. What brand are yours?
What ratio are you going with? I just bought some 3.40 pro gears (not installed yet) but I wish I could have found a higher ratio for street use..... maybe some 3.08 or 3.23's (29" tire). p.s... my pro 3.89's are quite as well. T
Going with a set of 4.29 or 4.30's. (33" et street and 33.5" slicks) I talked to Strange and they felt with limited heat on the gear the pro gear would be my best choice. I also talked with Larry Larson and he said to stick with the pro gear. That's kind of what I thought.
Tracy, IMO If you 1/8 mile race with a 29" tire the 3.70 would be good for you.