rear end noise

Dragsinger · 05-19-2016, 08:39 AM

I like the Chevy 12 bolt. I have installed the 12 bolt housing in a number of drag race buildups. In addition, I have installed many gear sets on both street and race packages.

My experience, about 4.10 and lower, because the pinion becomes smaller and smaller, it is a matter of mechanical tooth contact that the gear set will have some noise. The steeper the ratio, the more noise.

Another bit of experience, for ratios lower than 5.38, the 12 bolt is not the best choice.

A Dana 60 or 9" is a better choice for the steep ratios.

05-19-2016, 08:39 AM	#3
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: rear end noise I like the Chevy 12 bolt. I have installed the 12 bolt housing in a number of drag race buildups. In addition, I have installed many gear sets on both street and race packages. My experience, about 4.10 and lower, because the pinion becomes smaller and smaller, it is a matter of mechanical tooth contact that the gear set will have some noise. The steeper the ratio, the more noise. Another bit of experience, for ratios lower than 5.38, the 12 bolt is not the best choice. A Dana 60 or 9" is a better choice for the steep ratios. __________________ Larry Woodfin 471W