View Full Version : Dually


BULIT
06-27-2006, 07:19 PM
Question about spindles , will truck dually rotors fit on a 72 3/4 ton suburban spindle and are the calipers/brakes the same for both vehicles as near as i can tell the seals and inner bearings appear to be the same on both but the outer bearings seem to be different not sure about spindle length , so basically what to i need to run dually rotors on a suburban


Thanks
Guy

Robert1970C20rstbukt
06-27-2006, 07:39 PM
It'll be a bolt on and go since your 'Burb is already set up for disc brakes. The outer bearings are recessed into the hub, that's about the only difference.

BULIT
06-27-2006, 10:27 PM
thank you

Guy

BULIT
06-29-2006, 10:02 AM
I can`t find part numbers for the dually rotors we tried raybestos , bendix , wagner and chevy, but chevy gave a part number 338301 but said it was discontinued none of the above vendors could cross it SO where can i get these rotors or part numbers and manufacturers


Thanks
Guy

BULIT
06-29-2006, 10:44 PM
Anyone know if dually front rotors from a 73 up chevy or maybe from a dodge or ford with 6.5 bolt circle 9/16 studs fit on a 72 3/4 ton suburban spindle or what possible spindles/swap would i need to swap out to make it dually in front apparently 72 dually rotors are no longer available

Thanks for any help on this
Guy

72CREWCAB
09-09-2006, 01:10 AM
Don't know if you got an answer to this but when I swapped mine over to 1 ton I used the following.
Use your stock a-arms from the 3/4 ton. The bottom ball joint is the same for 3/4 ton and 1 ton 65-87. Change the upper to the 73 and up ball joint and 73-87 1 ton spindles will bolt up. Use 73-87 3/4 ton inner and outer tie rods and sleeves with the stock 72 3/4 ton center link and idler/pitman arms and you should be in business. If ya already got it done this is redundant! Hope this helps.

qksilver
09-10-2006, 04:58 PM
I would aslo recommend what Crew said because down the road the 73-up parts will be easier to find and cheaper