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I have a Dana 60 with 4.10 gears in my '76 F350. Can someone tell me how many splines in the axles, and if they're retained with c-clips. Also, has anyone installed an Eton Detroit Trutrac differential in their Dana 60--pros/cons, etc. I'm looking to upgrade to some sort of limited-slip/positraction set up.
Over the years anyone couldv'e upgraded the axle. To check the splines pull the axle shaft out.. there's a few bolts on the end and it pulls right out.
Axle code on the door jamb is 27J.
Re. D70--Is the diff cover different for a D70, cause I used a D60 gasket when I replaced the rearend lube. It's a "true" F350; as I said in an earlier post, I am the original owner.
The axle is retained by the bolts at the end of the axle, the ones that are visable when you look at the end of the axle. No retention clips involved. The axle floats in the housing, transmits power from the spider gears to the hub.
They use the same cover. D70's have a "70" cast into one of the supporting webs on the outside of the center section.
-Jared
What he said. Also, the D70's case "overhangs" the cover's edge where the D60's cover sits flush with the case. i.e. the D70's case is larger but uses the same cover, so the cover's edge sits inside the edge of the case.
one way to tell if its a 70 by visual is the axle tubes taper down at each end for the last few inches. This is also a common thing a dana 61 has as well so be carefull!