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Has anyone upgraded a 1987 4runner brake cylider??

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Old 06-05-2009, 05:49 PM
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Has anyone upgraded a 1987 4runner brake cylider??

Hey guys,

I was watching an episode of Trucks on spike and they upgraded the rear drum brake cylinders on one of their project trucks.

Has anyone ever did that with an 1987 4runner?

Thank you..

Last edited by waskillywabbit; 06-07-2009 at 05:59 AM. Reason: clarity of question
Old 06-05-2009, 09:29 PM
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Are you talking about the brake booster and master cylinder ?, if so, ive done it on my 86 4Runner, and it does make a diference in braking.
Old 06-05-2009, 09:34 PM
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1" master from a 2nd gen?
Old 06-05-2009, 09:43 PM
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adding a Brake booster from turbo truck or T100 (dual diaprahm) will do wonders for you.
Old 06-05-2009, 10:23 PM
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I used a brake booster (duel diaprahm) and master cylinder from a 93-94 4Runner, its a direct bolt in.
Old 06-06-2009, 09:11 PM
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Thanks for the input but I was refering to the brake cylinders that are on our rear drums.
Old 06-06-2009, 09:23 PM
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the wheel cylinders, u mean. that one im not sure.
Old 06-06-2009, 09:43 PM
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Ive heard that you can use the wheel cylinders from a T100, there bigger and will help braking. Ive never tryed this, i just read here in the forums. If you try it and it works, let us know.
Old 06-06-2009, 11:23 PM
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I looked and cannot find that thread.

By any chance to you remeber the thread?

Thank you...
Old 06-07-2009, 03:41 AM
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sure you can upgrade the wheel cylinders but consider upgrading the booster too so that your MC can push more pressure to the bigger cylinders...
Old 06-07-2009, 05:31 AM
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im tempted to do that on my rig, if i do it ill let u know.
....then again im tempted to mcguyver the air conditioning system from a ford expedition (oooooo so cold!) into my rig, lol. whichever takes priority.
Old 06-07-2009, 07:37 AM
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Convert to rear disc
Old 06-07-2009, 07:50 AM
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Here I thought this thread was about upgrading the front calipers to ones equipped on later V6-models.
Old 06-07-2009, 12:41 PM
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Originally Posted by Windsor
Here I thought this thread was about upgrading the front calipers to ones equipped on later V6-models.
You can upgrade the rotors and calipers on your truck, do a search, theres a write up on it somewere on here.
Old 06-07-2009, 12:48 PM
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Originally Posted by myyota
You can upgrade the rotors and calipers on your truck, do a search, theres a write up on it somewere on here.
oh, I know. I was hoping that's what this thread was about so that I could point it out.
Old 06-12-2009, 06:06 AM
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For 4 Runners, the 86 model has different rear wheel cylinders than the 87-93 models.
I was sure I had an '87 rear axle, but the replacement wheel cylinder inner piston set-up was too wide. physically, the outer dimensions looked the same, but when bolted in place, the pistons don't collapse in far enough....so the shoes are out further and won't let you install the drum....

trying a '86 set tonight if they match the ones that were on it....
Old 06-12-2009, 09:29 AM
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Originally Posted by McBrat
For 4 Runners, the 86 model has different rear wheel cylinders than the 87-93 models.
I was sure I had an '87 rear axle, but the replacement wheel cylinder inner piston set-up was too wide. physically, the outer dimensions looked the same, but when bolted in place, the pistons don't collapse in far enough....so the shoes are out further and won't let you install the drum....

trying a '86 set tonight if they match the ones that were on it....
picked up the '86 wheel cylinder at lunch, and it is the one I needed...
Old 06-12-2009, 10:39 AM
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Yea i have WITH A NEW OEM ONE!!!!!
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