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Tom Goldman · 07-21-2020, 01:07 PM

I've done an awful lot of Dana 60's with both Pro and street 4.56 gears and have never had issues with life expectancy. Mostly heavy cars too.
If pinion depth is confirmed to be correct, I'd suspect excessive heat from the tight backlash causing damage to the gears.
Most street gear ,race setups get between .008 -.010" backlash ,Pro gears I have usually at .012-.014.

07-21-2020, 01:07 PM	#7
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,477 Likes: 892 Liked 883 Times in 237 Posts	Re: Advice of Dana 60 Gears I've done an awful lot of Dana 60's with both Pro and street 4.56 gears and have never had issues with life expectancy. Mostly heavy cars too. If pinion depth is confirmed to be correct, I'd suspect excessive heat from the tight backlash causing damage to the gears. Most street gear ,race setups get between .008 -.010" backlash ,Pro gears I have usually at .012-.014. __________________ Tom Goldman 1500 SG , 1506 STK