1989 K30 or K3500 Dana 60

[73 cheySuper]

I'm going through the D60 front from a '89 1 ton dually....putting in a '76 K20 frame, and all this to convert my '73 C20 to four wheel drive.
Okay......the D60 is in need of all new brakes, bearings, seals and a good clean up. Went to Napa today and they looked up a 89 K30....no such thing, it's a K3500 in that year. Okay, no biggy, they had the rotors and calipers in stock. The rotors have a squarish opening not round, and are 3/8" smaller in diameter. Confused I am. I didn't buy them, went to shop online rockauto....the same thing. The part numbers seem to change from '86 and earlier to '87-'91. My D60 has the style on the left, they're trying to sell me the style on the right.

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This makes me wonder if any of the parts, wheel bearings, seals, etc. are applicable to my '89 D60. Very confused. Before I proceed, I need to nail this down. Thanx for any intel in advance!!!

 

[legopnuematic]

A 1989 K3500 is a GMT400 truck. A 1989 V3500 is a squarebody truck, the GMT400s are an independent front suspension with unit style hub bearings and Inboarded rotors like your photo on the right with the square. That shape is to clear and fit around the unit bearing mounting flange.

For the ease of ordering and keeping the confusing low, the Chevy kingpin 60 front is the same from 1977 to 1991. So just order parts for say a 1985 K30, or just make sure it's for an 89 V3500 and should interchange/xref back to 1977.

 

[73 cheySuper]

Oh, lesson learned. Just looked back at Rockauto and searched under V3500, same as the version I've got. Thanx a bunch!!

 

[73 cheySuper]

And just to make things way easier, does anyone sell a complete wheel bearing/seal kit so I don't have to peace meal the thing. I'm not replacing the lower spindle bearing.