Dana 60 rotors

Are the rotors the same from a Dana 60 ball joint diff as a Dana 60 king pin dually ?

No, the kingpin rotors where actually a bit smaller, not by much but a bit. I had this same problem and had to clearance the inside of the caliper a bit the make my original rotors work (had nice rotors so really wanted to re-use them..)

The early ball joint D60 used the same smaller rotors as the kingpin. IIRC 94-95 was the changeover point.

JSchuricht said:

The early ball joint D60 used the same smaller rotors as the kingpin. IIRC 94-95 was the changeover point.

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Yea, ball jointed with slide pin calipers. I swapped the knuckles in order to use the bolt on calipers which have the larger rotor.

Billy T.
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Billy, you and I think alike. That is exactly what I did. Couldn't image all the trouble to swap the axle without the best brakes so I found 95-97 knuckles.

As far as this goes I can confirm it is correct: "The early ball joint D60 used the same smaller rotors as the kingpin. IIRC 94-95 was the changeover point."

The change over was 95.

well ill be on the hunt for newer knuckles

how much smaller are they ? could i turn them down on a lathe ?

There wasn't much difference in size, about 1/2" but the width is a bit different too. I screwed up with my swap, didn't know about the two types being offered so I stuck with the pin on calipers after looking at prices for knuckles.

jstann said:

well ill be on the hunt for newer knuckles

how much smaller are they ? could i turn them down on a lathe ?

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Just so I'm clear, you have a 90-94 ball-joint axle, or a kingpin axle?

I have a king pin axle

Only the ball jointed knuckles are interchangeable.

Billy T .
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Yea you cant put balljoint knuckles on a kingpin axle. You'll have to just be happy with what the kingpin does well and bite the bullet with brakes a bit.

The size difference isnt a full 1/2 I dont think, i mentioned I was able to clearance my Caliper in order to allow the larger style rotor in it. I think the rotor height difference was like a heavy 1/8 inch, 3/16 maybe total, so as a radius I remember having to trim about 1/16 off the inside of the caliper. That was just my experience, probly would have been a better idea to turn the rotor down a bit.

Although I never had a problem with the slide pins for the calipers, IMHO the bolt on calipers are superior to the slide pin ones.

Billy T.
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gnxtc2 said:

Although I never had a problem with the slide pins for the calipers, IMHO the bolt on calipers are superior to the slide pin ones.

Billy T.
[email protected]

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This is my opinion as well. But your either get balljoints and bolt on, or a more desirable (especially for larger tire trucks) kingpin and slide pin calipers. Pick your poison.

94 and older rotors are 12.56" diameter, 1.25" thick, 1.18" throw away thick

95-97 rotors are 13" diameter, 1.25" thick, 1.18" throw away thick

King pin axles have a removable caliper bracket for slide pin calipers. There are some aftermarket ones that use bolt on calipers, most of them use a single piston Chevy caliper. There may be some out there that actually upgrade the system. If not, the brackets are simple so you could build your own to use something larger.

jstann said:

I have a king pin axle

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You are going to have to cut off and replace the in inner C's if you want to switch to a ball-joint knuckle.

Run the axle the way it us. Having kingpins far exceeds the downfall of a slightly smaller brake rotor.

Agreed king pin is much better.

I don't want a ball joint knuckle I just took one out to put the king pin on in I want the bolt on caliper king pin

You're chasing a unicorn then my friend.