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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Brakes and Braking Systems => Topic started by: lotopp79 on February 16, 2006, 05:06:00 PM

Title: spindles and brakes
Post by: lotopp79 on February 16, 2006, 05:06:00 PM
what years did the 1.25 rotor come on the 2wd half ton or is it more complex then that

the reason I ask is that many moons ago I ordered a set of sindles through godfathers and they told me the 79 I had the 1.25 rotors without me measuring and they were right so what years or models came with the 1.25 rotor

Title: Re: spindles and brakes
Post by: roundedline on February 16, 2006, 05:14:00 PM
The got lucky.  It was optional on all 1/2T pickups.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Title: Re: spindles and brakes
Post by: RSBAD454 on February 16, 2006, 09:41:00 PM
I believe heavy halfs and diesel trucks had them.

Toys are my game

Title: Re: spindles and brakes
Post by: roundedline on February 21, 2006, 09:57:00 AM
Sorry, I guess that was a short answer...  RSBAD454 is correct.  Diesels and Trucks with the HD (Heavy Half) suspension had the 1.25 rotors also.  Along with every Blazer/Jimmy and Suburban.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Title: Re: spindles and brakes
Post by: lotopp79 on February 21, 2006, 07:59:00 PM
acording to the measuring tape at advanced the 1979 replacement rotors for a regular 1/2 ton 2wd is 1.25 inches no hd spec or anything but my search must go on for a more specific answer

Title: Re: spindles and brakes
Post by: lokmotion85 on February 21, 2006, 08:35:00 PM
i dont no if it will help,but i have a 78 2wd jimmy w/ 1.25 roters,plus my 85 c/10,& had a 77 h.half lb., now i just tore down 84 sb for parts & its got 1.00 what is differant then the others its manuel brakes & steering,6cyl.-3 on-the-tree maybe thats the key...roll low..drag hard ..toby

Title: Re: spindles and brakes
Post by: roundedline on February 22, 2006, 05:14:00 PM
The specific answer is if you have HD suspension, you have HD brakes.  ALL Jimmy/Blazer, Suburbans and Heavy Half pickups have HD brakes.  All trucks with option J55 also have the HD brakes.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project