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-   -   Advice of Dana 60 Gears (https://classracer.com/classforum/showthread.php?t=76784)

James L Miller 08-25-2020 02:03 PM
Re: Advice of Dana 60 Gears
 
Quote:
Originally Posted by ss125h (Post 619831)
John, I run same car, but a lot less torque (340) with 8.75 ,point is we always have the gears heat treated. Have had very few problems, even running close to 3700 lbs. We do run 6-12 thou. bk-lash, with auto trans. good luck. Glen H 1257
What hardness do you have the gears heat treated? For 8620 and 9310 steels the tempering temperatures are in the 300F to 450F range.

https://www.emjmetals.com/pdf_indexe...loy_Steels.pdf

https://www.emjmetals.com/pdf_indexe...denability.pdf

Ralph A Powell 08-25-2020 02:56 PM
Re: Advice of Dana 60 Gears
 
Do you guys use the a spreader to get the ring gear out and have preload?

Steve Stasko 08-25-2020 05:07 PM
Re: Advice of Dana 60 Gears
 
Quote:
Originally Posted by Ralph A Powell (Post 621744)
Do you guys use the a spreader to get the ring gear out and have preload?
Herb McCandless told me to avoid the spreader unless absolutely necessary. If you're not careful with it, it will bend the housing. A box end wrench on the ring gear bolt, and carefully turning the yoke with push the carrier right out of the housing with little to no effort.

Mike Pearson 08-26-2020 08:06 AM
Re: Advice of Dana 60 Gears
 
Quote:
Originally Posted by Ralph A Powell (Post 621744)
Do you guys use the a spreader to get the ring gear out and have preload?
I don't use the spreader. I have just enough preload where it takes a couple of taps with a plastic mallet to get the spool into the housing. I dont run much preload on the pinion either. Doing it this way there is little to no drag. I have been getting great gear life well over 1000 runs. Running either 6.17 or 5.86 ratios depending on the engine combo.

GTX JOHN 08-30-2020 06:51 PM
Re: Advice of Dana 60 Gears
 
Thanks to everyone for their help =
We are back together and ready for Vegas Natl's!


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