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homemade87 · 01-09-2016, 07:34 PM

In my opinion , that looks really good . I would run that . Good even pattern top to bottom , smooth lines , pattern center coast and drive side . I would run it .

Check your back lash 3 places . If you average .007 to .008 you should be good .

Some aftermarket gears can be a bear to set up . Unfortunately there are no oem gears out there for the 12 bolt . Gm quit making them years ago . AAM makes gm oem gears now and do not have 12 bolt gears . The Richmond orange box gears are not known for being quiet . It is a hit and miss . 3.42 gears are not as bad as the 4.11 and up .

01-09-2016, 07:34 PM	#15
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: 12 bolt ring gear contact pattern help In my opinion , that looks really good . I would run that . Good even pattern top to bottom , smooth lines , pattern center coast and drive side . I would run it . Check your back lash 3 places . If you average .007 to .008 you should be good . Some aftermarket gears can be a bear to set up . Unfortunately there are no oem gears out there for the 12 bolt . Gm quit making them years ago . AAM makes gm oem gears now and do not have 12 bolt gears . The Richmond orange box gears are not known for being quiet . It is a hit and miss . 3.42 gears are not as bad as the 4.11 and up . Last edited by homemade87; 01-09-2016 at 07:51 PM.