OBS to Superduty caliper upgrade? - Ford Powerstroke Diesel Forum
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post #1 of 28 Old 06-13-2014, 02:46 PM Thread Starter
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OBS to Superduty caliper upgrade?

Hey y'all,

So had my right front caliper lock up and eat a pad and tear up the rotor. So in my looking to upgrade while replacing, I noticed we don't really have any upgrades to do. So this got me wondering why superduties have option like SSBC and we don't since we all use a D60. Went down to the parts store and had them pull a 97 caliper and a 99. A quick side by side comparison shows the mounting brackets look the same. Not sure if bolt size and thread are the same though, would need to go back and check again? If I recall our rotor sizes aren't that different either? So other than that the SD use a slide pin type caliper what is stopping me from bolting on a upgraded SD caliper? Any insight y'all have would be great!


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post #2 of 28 Old 06-13-2014, 02:57 PM
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It's an 8x170 bolt pattern, so your gonna buy new wheels too?

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The stock downpipe in an OBS is flat because I'm a ginger.
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post #3 of 28 Old 06-13-2014, 03:03 PM Thread Starter
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No, keep my obs 8x6.5 rotor. The carquest computer says there 8thousands of an inch diffence in rotor diameter. Asking if I can bolt a SD caliper over a OBS rotor.


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post #4 of 28 Old 06-13-2014, 04:38 PM
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try it and let us know how it works. i think you can also buy blank rotors and get them drilled

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post #5 of 28 Old 06-14-2014, 05:21 PM Thread Starter
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I'll pick up a caliper and see if it fits. And I'll post back up, went and grabbed a set of SD pads today and the seem to have the exact same arch. Only difference I saw was that the pad material was shorter and a little thinner than OBS but that could just be autozone cheapies.


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post #6 of 28 Old 06-14-2014, 08:58 PM
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I just picked up an 01 today I'm doing bearings on tomorrow I may try and see the difference while I'm at it

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2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
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Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #7 of 28 Old 06-15-2014, 12:20 AM
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post #8 of 28 Old 06-15-2014, 08:29 AM
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just a few thoughts
the sd has a massive caliper bracket that bolts to the knuckle and then caliper bolts to that it's all Metric IIRC not sure what the OBS uses or if that impacts you

the SD rotor diameter may effect you ? I have a set in the shed if you need a measurement ? EDIT i see you posted 8 thou that seems
unlikely ?? i thought they were much larger ?? what about thickness I think my rotor has that marked if you need it ?

the valving may be off since the SD has 2 large pistons , just a consideration

good luck it would put a huge damper in the rebuilt sd caliper cores if this works out LOL

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post #9 of 28 Old 06-15-2014, 10:44 AM
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The OBS has 2 piston caliper, how much bigger is a SD one ?

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post #10 of 28 Old 06-15-2014, 11:22 AM
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? i thought it was a single
good question I wonder how big the pistons are ?

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Rize 4 link Toyo 37" camper modified special
For a truly terrible firearm experience I suggest Taurus
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