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Tech Area => General Auto Tech => Topic started by: Scoobum on June 14 2018, 04:40:35 PM

Title: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Scoobum on June 14 2018, 04:40:35 PM

Okay, slapping a pair of new front brake rotors and pads on my 2004 2500 Silverado. A1 Auto has a vid on YouTube of using 2 M10x70 bolts threaded through the rotor to get them off. Anyone had any difficulty getting them off...as they should just slide off...or did you require the bolts to get them off. I stopped by a specialty bolt/nut store we have in town and grabbed the bolts.

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: TexasT on June 14 2018, 08:29:06 PM

I've not done the front but the back had to have a big torx I think #50 and they came right off when I took the fastener out .  Mine is a 2003 2500hd. Maybe the front is different.

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: daveismissing on June 14 2018, 08:46:58 PM

3 days of pounding convinced me to put anti-seize on every mating surface of my old F150. I wish you better luck.

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Scoobum on June 14 2018, 08:48:04 PM

Thanks Rich/Dave. The bolts push against whatever's behind the rotor and forces it off if it's stuck. Rotors should fall off...but this thing has about 200,000 miles on it. Mite be a bit of a whore...

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Pyro6 on June 15 2018, 06:43:19 AM

The bolts are just pushing against the hub. Sometime the threads in the rotor give up. Take your favorite rust breaker and soak around the hub and rotor surface and the base of each wheel stud.

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Steve Wood on June 15 2018, 11:45:36 AM

After soaking, tighten the bolts a bit to apply some tension and if it does not pop loose, apply a hammer around the edge to give it a little encouragement

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Scoobum on July 19 2018, 02:06:37 PM

Put new rotors and pads at all 4 corners...and now the left rear caliper has decided it wants to tighten up. The pistons went back in nice and easy. I can't win...

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Steve Wood on July 19 2018, 02:43:17 PM

Standard outcome

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Pyro6 on July 19 2018, 05:17:39 PM

Just curious, what do you mean it wants to tighten up?

Title: Re: 2004 GMC/CHEV 2500 Front Brake Rotor Question
Post by: Scoobum on July 19 2018, 05:42:56 PM

Quote from: Pyro6 on July 19 2018, 05:17:39 PM

Just curious, what do you mean it wants to tighten up?

Pistons have seized up.