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08-04-2011, 09:32 AM
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#1 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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JB3 or JB5
How can it find out which one I need because the the rear end is out of another truck and I need a new vacuum booster and master cylinder.
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John Bernard Books (The Shootist): "I won't be wronged, I won't be insulted, and I won't be laid a hand on. I don't do these things to other people and I expect the same from them." |
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08-04-2011, 09:50 AM
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#2 |
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Registered User
Join Date: Mar 2003
Location: wichita falls tx
Posts: 429
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Re: JB3 or JB5
I believe JB1 is manual brakes which should have 1" rotors, JB3 is power brakes with 1" rotors and JB5 is power brakes with 1.25" rotors. I don't think which drums you have will affect which master you choose too much, I think all the rear wheel cylinders are the same any way. I have swapped JB3 brakes on to trucks with JB5 master cylinders and vice versa with no problems. I would just get the booster and master cylinder that matches you front brakes, JB3 for 1" and JB5 for 1.25".
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"I'm Dirk Diggler enough to own and operate a vehicle of this caliber" -veinbar Dropped and LS Swapped SWB 87 Build Thread |
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08-04-2011, 01:40 PM
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#3 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Re: JB3 or JB5
Cool I went out and looked at the brakes and they are 1.25"
__________________
John Bernard Books (The Shootist): "I won't be wronged, I won't be insulted, and I won't be laid a hand on. I don't do these things to other people and I expect the same from them." |
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