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1987 gmc suburban 4x4 front brake rotor needs replaced

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First I feel compelled to get on the soapbox and say ALWAYS replace brake components as sets (Driver AND Passenger Side) to avoid some nasty side affects from disproportional application of the huge forces used in the braking system (like having the wheel ripped out of your hand as the truck dives off in one direction or the other or having one wheel lock up while the other spins freely).

I've changed the rotors on my 1/2 manual hub and 3/4 ton automatic hub 1988 models, so I can tell you from personal experience that if you're reasonably competant with a tool box, doing the job on a half ton is a piece of cake and the Haynes manual and a special socket you can buy at any auto parts store should be all you need. The 3/4 is an entirely different beast though, using a rotor that is wedgemated to the hub and ground true after the fact, so considering that I wouldn't touch that job myself with 30 years experience as an automotive and aircraft mechanic because of the tooling involved, it's pretty safe to say you probably shouldn't either.

One word of warning on the hubs. Unless you're an expert on the specific hub you've got, make certain that you can re-assemble the unit exactly as it came apart. I take advantage of the camera on my cell phone these days on just about every job 'just in case', but that's only one of many options.

Good Luck!

Posted on Sep 19, 2008

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