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Old 05-19-2017, 12:59 PM   #1
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Trying do Brakes

Hi. A little help is needed. I'm currently trying to do the brakes on my SMB 4x4. I have all of the parts listed on the sheet and started the process of opening the rotor holes to 11/16 as suggested in the sticky. I tried to test a stud and it just dropped in. Obviously something is amiss. Here are the part numbers of what I am using.
Dorman studs 610-283
Auto Specialty rotors AR8553


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Old 05-19-2017, 01:18 PM   #2
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I should specify that it is a 2006 smb. Is the upsizing of holes only required on the old smb's?

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Old 05-19-2017, 04:25 PM   #3
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I got no idea, except that sticky mentions 21/32" also..

I'd recommend calling SMB.
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Old 05-19-2017, 04:37 PM   #4
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I just tried smb. The parts guy is out for the day. May just end up swapping the pads and regreasing the bearings. The rotors look good.

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Old 05-19-2017, 07:34 PM   #5
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I ran over to Napa to check the
NAPA # 641-2794 Wheel Studs
mentioned by Staussmobile to see if they had a larger shoulder or knurl to fit the 11/16" hole and they are actually smaller than the Dorman studs. I haven't actually pulled my hubs apart to see how everything goes together, But am I correct in thinking the studs are pressed into the rotor and then that assembly fits over the hub?

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Old 05-19-2017, 08:09 PM   #6
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On later Fords (my 2012 for example), the studs are pressed into the hub. The rotor then easily fits over the studs. No press fit there. Not sure about 2008 vans.
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Old 05-19-2017, 09:23 PM   #7
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I don't have an SMB conversion...but......

?????.....The studs don't press into the rotor......they are on a flange that is behind the rotor......

Opening the holes to 11/16" allows 8x170mm lug pattern to fit on a 8x 6.5" rotor...I'm assuming that anyway.....

This also assumes that your van is 4WD....if it's 2WD the front rotors are completely different....
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Old 05-19-2017, 09:27 PM   #8
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It's 4wd. Dynatrac prorock 60.

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Old 05-19-2017, 09:36 PM   #9
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Front rotors in the picture? You have lugs/studs sticking out of the hub flange, correct?

...the hub flange is back on the van...not the rotor......

Can you post a pic of the hub with the rotor off???
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Old 05-19-2017, 09:37 PM   #10
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Quote:
Originally Posted by joefromsf View Post
On later Fords (my 2012 for example), the studs are pressed into the hub. The rotor then easily fits over the studs. No press fit there. Not sure about 2008 vans.
2008 vans are the same.....
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