Dana 60 Power-Lok case bolts

[1KoolBee]

Going through my ‘70 Dana 60 and I was wondering if the diff case bolts are left handed threads like the 8.75 power-lock? Factory manual is TFU Regarding Dana 60.

 

[Fran Blacker]

Not 100% positive but think righthand threads. At least last one I did no L on bolts.

 

[69Bee]

Case bolts are regular RH thread, and as far as I know, only the ring gear bolts are LH.

 

[1KoolBee]

Thanks, bolts are grade 8 and marked “F”. So I think you are correct. Weird that 8.75 bolts are 3/8-24LH and Dana are 7/16-14RH tho.

 

[1KoolBee]

BTW: ARP 645-3500 bolts are proper sized bolt for Powr-Lok diff case replacements. Come in packs of 5 and you’ll need 8. So about $60 from Summit.

 

[1KoolBee]

https://media.spicerparts.com/cfs/files/media/ahd5WcQ3TvJismpvQ/5315-3.pdf?store=original


For those who ever tear into one of the Dana-60 Powr-Lok differentials, here’s link to Spicer’s downloadable pdf service manual. Note that Figure 14 on page 6 is the factory mopar configuration for clutch plates.