12 bolt vs Dana 60

[Jeff Stout]

12 bolt with aftermarket goods will hold up. I'm 3360 10 flat ET with trans brake and around 170 passes. No noise yet. Did break a 4.56 street gear. Went pro gear and that's been it. Also used 4.10 gear with 9 tooth pinion and no problem. If I remember I think 85 lbs lighter then dana

[Mark Yacavone]

I wouldn't carry a Dana 60 , unless it was for the 6.50 ratio.
Come to think of it, there's your real answer ;-)

[SSDiv6]

Originally Posted by Mark Yacavone

I wouldn't carry a Dana 60 , unless it was for the 6.50 ratio.
Come to think of it, there's your real answer ;-)

...or a 7.17 ratio...

[Dragsinger]

with the ratios of 5.86 - 6.14 the 12 bolt pinion is very small. It may have been an isolated case but with the 5.86 in my Super 10 it did not hold up. Even with a Cryo treated gear set. Installing a 5.57 gear gained one more tooth on the pinion and gear life was much better. This was with a SS 327 running 10.30s at 8400 - 8600 RPM at around 3250 pounds

[340Cuda]

Isn't the 12 bolt about the only rear end that is more efficient than a Dana 60?

[BRETV]

Originally Posted by 340Cuda

Isn't the 12 bolt about the only rear end that is more efficient than a Dana 60?

8.8 Fords are like 12 bolts very efficient. I ran an 8.8 with 5.71's weighing 3100, trans brake,10.60's no problem.




Bret Velde
2003 ??/SA

its a couple of dollars, but an aluminum spool, gun drilled lightweight axles, and if you dare ceramic bearings i think the Dana will be just as fast as the 12 bolt and not have the gear trouble either, + 6.50 and a 7.17 option is nice as well. it will also last forever. you already have it in the car as well

[Myron Piatek]

If you're still wanting to try the 12 bolt, perhaps Charlie Boyles could offer some advice and what to expect with a 12 bolt.

http://www.competitionplus.com/drag-...a-legend-lives

[Dwight Southerland]

Hypoid angle for a Dana 60 is less than a 12 bolt. Several years ago, Car Craft did a side-by-side comparison of a 12-bolt, a Dana 60 and a 9-inch. The 9-inch was the loser. No clear winner between the 12-bolt and the Dana.

[Bench Racer]

Originally Posted by SSDiv6

...or a 7.17 ratio...

My Brother ran a Dana with 6:83 and a 2:75 low gear in IHRA Production with a 283c.i. 1958 wagon . The car was a tank at #3839 and low gear was a short ride lol, he shifted at 10,500 rpm. Never broke a gear in the Dana.