H/D brakes (1.25 rotor) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jlaird · 04-13-2007, 04:35 PM

I have 73-87 drop spindles for the 1.25 rotors. I just went to purchase rotors and calipers at rockauto.com and none of the descriptions say if they are standard duty or heavy duty. Has anybody purchased from there before and can tell me what to buy? I would prefer to buy from rockauto because it it ALOT cheaper even with shipping, but if anybody knows part numbers for either Autozone, Advance, or NAPA, I would appreciate that too.

Thanks,
josh

bigblock73 · 04-13-2007, 05:12 PM

NAPA part number for 1.25" rotors is 85537

I purchased mine last summer, $148 for both total. They were the top of the line.

jlaird · 04-13-2007, 06:01 PM

thanks. do you happen to have NAPA part numbers for a caliper that will fit the 1.25 rotor?

bigblock73 · 04-13-2007, 10:38 PM

Quote:

Originally Posted by jlaird

thanks. do you happen to have NAPA part numbers for a caliper that will fit the 1.25 rotor?

242-2000 & 242-2001

Grease caps are 10034
Caliper bolts 82205
Grease seal 730-2438
Brake hardware kit 4982101
Brake oil seal 19984

Duro5341 · 04-14-2007, 09:28 AM

Not to get to far off topic

My 86K10, has the 1" rotor.....standard brakes.

How do upgrade my 86K10 to the heavy duty brakes?
Can I upgrade both front and rear?
If someone has a list of the stuff required, and what to do that would be great. I have a doner K10 and I am rebuilding both axles with 3.23 gears, and would like to do the brakes at the same time

Thanks
Duro

04-13-2007, 04:35 PM	#1
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	H/D brakes (1.25 rotor) I have 73-87 drop spindles for the 1.25 rotors. I just went to purchase rotors and calipers at rockauto.com and none of the descriptions say if they are standard duty or heavy duty. Has anybody purchased from there before and can tell me what to buy? I would prefer to buy from rockauto because it it ALOT cheaper even with shipping, but if anybody knows part numbers for either Autozone, Advance, or NAPA, I would appreciate that too. Thanks, josh

04-13-2007, 05:12 PM	#2
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,824	Re: H/D brakes (1.25 rotor) NAPA part number for 1.25" rotors is 85537 I purchased mine last summer, $148 for both total. They were the top of the line. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

04-13-2007, 06:01 PM	#3
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	Re: H/D brakes (1.25 rotor) thanks. do you happen to have NAPA part numbers for a caliper that will fit the 1.25 rotor?

04-14-2007, 09:28 AM	#5
Duro5341 Registered User Join Date: Dec 2006 Location: Earth Posts: 239	Re: H/D brakes (1.25 rotor) Not to get to far off topic My 86K10, has the 1" rotor.....standard brakes. How do upgrade my 86K10 to the heavy duty brakes? Can I upgrade both front and rear? If someone has a list of the stuff required, and what to do that would be great. I have a doner K10 and I am rebuilding both axles with 3.23 gears, and would like to do the brakes at the same time Thanks Duro __________________ -1986 K10 LWB, 350 HD,TH400 3.08, 30 spline 10 bolt, with an Auburn Posi, 31" tires All original, second owner truck -1979 Monte Carlo, 350, 200r4, 3.73 posi -1987 GT T-top Mustang - slow moving project



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