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Old September 14th, 2013, 10:39 PM   #1
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Default 8.8 hung disc brake

Ok so like the title says I am fighting with a rear axle rotor that won't come off. I have done heat I have hammered on both sides and am even attempting to do this http://youtu.be/mtsTJCRljAs it appears the rotor is stuck to the axle shaft end. I am losing my mind right now any hints tips and tricks would be great.
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Old September 14th, 2013, 11:25 PM   #2
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Mix ATF and acetone 50/50 in a squirt bottle. Drench it down and let it sit. That is the best penetrant I have ever used. It may do nothing but it won't hurt.
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Old September 15th, 2013, 01:00 AM   #3
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What did you use for heat? Propane/butane alone would take forever to heat it up. Oxy/acy or oxy/pro and a hammer used properly to heat the correct area will have it off in no time
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Old September 15th, 2013, 11:29 AM   #4
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Quote:
Originally Posted by built View Post
What did you use for heat? Propane/butane alone would take forever to heat it up. Oxy/acy or oxy/pro and a hammer used properly to heat the correct area will have it off in no time

Get it hot, we want the rotor to heat up drasticly quicker than the axle shaft.

Mapp will work if its not to bad, sounds like you need big boy torches.
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Old September 15th, 2013, 12:36 PM   #5
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Loosen the parking brake
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Old September 15th, 2013, 08:07 PM   #6
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Spray on Coppertone sunscreen. It works surprisingly well. Spray it on and let it set a couple of minutes then pop it off
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Old September 15th, 2013, 09:26 PM   #7
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If it's hanging on the the parking brake, cut the pins that hold the shoes to the backing plate.
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Old September 15th, 2013, 10:36 PM   #8
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So it was not hanging up on the parking break since I never re installed them. However that video I posted did the trick in under 20 minutes both sides were off. Grade 8 bolts 1/4 x 20 bolts and a ton of washers. Pro tip make sure you put a lug nut on or the rotor will go flying!!
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