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Can anybody tell me if I can get a larger cross drilled , slotted rear rotors on my 84? Any after market caliper brackets which will allow larger rotors? I'de love to put 12 or 13 inch rotors on the rear. I know 1984 was a one off year. Any suggestions? Help
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by ddonzella
Well that would be ok. What about changing the caliper mount assembly to a later model? Is the spline compatable ?
Not sure what you mean by that. The chevy 5-bolt patterns are all the same 4.75" bolt circle. The C5 front rotors for example, will fit, but the different rotor offset and diameter mean you'll need a custom adapter to get from the floating caliper bracket or fixed caliper, to your knuckle.
There are some C5 front caliper adapters available, but I don't remember where.
I am sure what your goal is with a new brake upgrade but I do know that there are very few kits for our 84's. You may want to contact Al at www.Aerospacecomponents.com. I don't remember the exact size they offer for rears but I just bought a pro street type kit for the front that will knock off an easy 10+ lbs off the nose of my 84. They are nice to deal with and not only do they offer a complete brake kit but also a line kit also.
I am glad to help. I am on here asking questions all the time, mostly relating to weight reduction ideas so any time I can return the favor I am happy to do it.