Front hub extensions.

[1984dually]

Is it possible to use the later hub extensions on 3/4 ton rotors? Wanting to use 3/4 ton rotors on mu dually and the extensions if possible.

 

[nvrenuf]

Square body dually set ups are cast as a part of the bearing hub. Some newer applications use a removable extension but make sure it’s 8x6.5 pattern.

 

[1984dually]

I realize what they came with Would like to use drilled/slotted rotors and don’t seem to be available for dually’s. 92-96 are 8/6.5 but not sure of the center hole.

 

[bucket]

I realize what they came with Would like to use drilled/slotted rotors and don’t seem to be available for dually’s. 92-96 are 8/6.5 but not sure of the center hole.

I "think" the center hole is the same size. I have a couple dually 16's that I believe are 90's GM and they fit the squarebody trucks.

 

[Strick]

Some newer applications use a removable extension but make sure it’s 8x6.5 pattern.

I've seen the extension that bolts to the front rotors on the newer dually trucks. I have not tried a set on an older Square though. The older Square stuff is cast as dually. Be careful and do some measuring as the 30 series rotor is thicker (even single wheel) than the 20 series rotor. They will bolt up but the pads will fall out of the caliper after some wear due to the difference in thickness. I've seen it...but fortunately not experienced it!

Strickland

 

[1984dually]

Have realized that the 30 series rotors are thicker than 20. Will be using 30 series rotors if it will work. Looks like a trip to the upullit yard.

 

[bucket]

Are you still using the 30 series spindle and caliper?

 

[1984dually]

Yes, no plans to change from the c30 spindles

 

[Mr Clean]

Have realized that the 30 series rotors are thicker than 20. Will be using 30 series rotors if it will work. Looks like a trip to the upullit yard.

That was going to be my suggestion, go buy some cheaper ones and see if it will work. Than buy your drilled and slotted if it works.