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Technical Info: 2nd Gen 12 VALVE DRIVETRAIN Technical discussion of second generation (1994 - 1998) 12-valve engine and drivetrain questions, solutions and upgrades.
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Old 02-29-2016
unioncreek unioncreek is offline
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Default One ton wheel cylinder?

I saw on another forum that you can replace your rear brake cylinder with one from a one ton. I believe they used a cylinder from a Chevy. Is this a direct or do you need additional fittings for the brake line?

Bob
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Old 02-29-2016
edward moller edward moller is offline
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Default wheel cylinder

I changed mine out about 10 years ago, the best thing ever done for more braking assist. direct interchange, went from 7/8 bore to 1". you will feel the difference the first time you put the brakes on!
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Old 02-29-2016
unioncreek unioncreek is offline
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Ed,

Did you use Chevy 1 ton cylinders?

Bob
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Old 02-29-2016
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gkainz gkainz is offline
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GM part #4637337

If you google this

https://www.google.com/search?client...UTF-8&oe=UTF-8

you'll see http://www.dieselbombers.com/94-98-1...r-upgrade.html and other links as well as youtube videos

I did this on my '97 and noticed a big difference when hauling my 5th wheel in life of the front pads. I REALLY noticed it when empty and had to retrain my brake foot to avoid some really hard braking.
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07 2500 4x4 Laramie 6 speed.

SOLD 97 2500 4x4 ExtCab LB Auto; Isspro gauges (pyro, boost, tranny); 75hp Maxsticks, MaxTrans auto, KDP killed; BD DSS; 3rd gen 17" wheels; GM 1ton rear brake cylinders; Westin step bars; Pakbrake exhaust brake, TS Performance TC Lockup.

Last edited by gkainz; 02-29-2016 at 09:53 AM..
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Old 03-01-2016
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ccmckee ccmckee is offline
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Yup, direct replacement, did it on my '96 and like everyone else stated immediate noticeable difference in stopping power. You may want to soak the brake lines and fittings with penetrating oil a few days before hand if you decide to do it.
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Old 06-02-2016
unioncreek unioncreek is offline
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I'm not very good at giving updates. But, this made a world of difference. I've actually had to stand on the pedal with both feet when I needed to stop quick. But, not anymore.

Thanks to whoever figured this out.

Bob
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