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GM B-Body Forum, 77-79 Caprice/Impala Forum

A forum for the owners and enthusiasts of General Motors B-Bodies from 1977-1990, but dedicated to the owners of 1977-1979 Impalas and Caprices. Join up now!


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Kit1078
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    Spindle interchange

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    Post  vwmopar Tue Jul 12, 2016 2:43 pm

    I have a 78 Buick LeSabre Coupe. I plan to go the pro touring route with ls t56 swap, Speedtech suspension and Kore3 brakes. Right now I'm trying to find spindles. Will 70-81 F body spindles work on the b body?
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    Post  vwmopar Wed Jul 13, 2016 1:38 pm

    I guess no one knows anything.
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    Post  Xtreme Thunder Wed Jul 13, 2016 3:32 pm

    From what I gather the 2nd Gen GM F-Body guys used to use GM B-Body spindles as a modification to allow for the larger rotors. You may be better off sourcing GM B-Body spindles if you are looking for larger brake rotors than what the 2nd Gen GM F-Body originally came equipped.

    I'd contact KORE3, as I did a few weeks ago myself, and they were extremely helpful as they don't specifically list the GM B-Body, in my case a '87 Caprice, on their site. Let them know what you are looking to do and go from there.

    I know not directly answering your question, but that is what I came across in my brake upgrade research.

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    Post  vwmopar Wed Jul 13, 2016 5:19 pm

    Thank you. That's probably what I'll do. What info I find I'll post.
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    Post  vwmopar Wed Jul 13, 2016 5:30 pm

    Or contact speedtech which I have with no answer.
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    Post  Kit1078 Wed Jul 13, 2016 10:59 pm

    My understanding on Spindle interchange is:

    70-81 F body
    74-77 A body (Monte carlo, grand prix)
    77-90 B Body

    The 77-96 B body with 12" spindle has been used as a swap for F bodies to get the 12" brakes. If you use a 88-90 1LE camaro rotor on the 12" B body spindle, you maintain the 5 x 4.75" bolt pattern.  

    I picked up a set of spindles from Classic Performance Parts that are cast to use a C5 corvette bearing and brakes.  They're cast iron, stock geometry, just retooled to accept the corvette brakes. Link posted below:

    https://www.summitracing.com/oh/parts/clp-7081swbksc5r/overview/
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    Post  vwmopar Thu Jul 14, 2016 2:09 am

    Awesome thanks
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    Post  GM B-Body Forum Thu Jul 14, 2016 9:23 pm

    I know they used to do the same with A-bodies, switching over to B-body spindles and brakes, and control arms. People like our braking systems!
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    Post  vwmopar Thu Jul 14, 2016 10:58 pm

    Is it the brakes or the spindles? I've heard of guys doing tall spindle swaps on some cars just haven't found any specifics on it.
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    Post  Myloth Sat Jul 16, 2016 5:14 pm

    I can't find any by me in the yards though they rarely get B bodies anymore. I may have to go for dropped spindles that's

    all they seem to make now. I really want to swap my front brakes badly they burn going down steep inclines, these are the 11"

    with the larger pads.
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    Post  Kit1078 Sun Jul 17, 2016 10:19 am

    gotta watch your wheels with drop spindles. a lot of Impala SS guys have trouble with the steering arm on the spindle hitting the inside of the wheel with 2" drop spindles. if I can find the link to the pics one guy had, i'll post it.

    Kore3's GM Tall spindle kit will fit a B body spindle, you just have to watch, there's two versions based on wheel bolt circle and bearing type.
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    Post  docolds1 Sun Sep 18, 2016 9:44 pm

    Kit1078 wrote:My understanding on Spindle interchange is:

    70-81 F body
    74-77 A body (Monte carlo, grand prix)
    77-90 B Body

    The 77-96 B body with 12" spindle has been used as a swap for F bodies to get the 12" brakes. If you use a 88-90 1LE camaro rotor on the 12" B body spindle, you maintain the 5 x 4.75" bolt pattern.  

    I picked up a set of spindles from Classic Performance Parts that are cast to use a C5 corvette bearing and brakes.  They're cast iron, stock geometry, just retooled to accept the corvette brakes. Link posted below:

    How did this kit work out for you? I'm looking to do the same.
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    Post  Kit1078 Sun Sep 18, 2016 10:26 pm

    docolds1 wrote:How did this kit work out for you? I'm looking to do the same.

    I haven't gotten it on the car yet, I just got done doing bushings in the front end and need to clean up the steering gear before I put it all back together.  They're decently built, and though they're cast iron, they're still a bit lighter than the stock spindles once assembled.  If I ever post a build thread I'll put pics of them there.
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    Post  vwmopar Mon Sep 19, 2016 12:34 am

    I haven't tried it yet. I'm doing research. I won't be running dropped spindles. Going to use Speedtech suspension which will give around 2 inches of drop.
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    Post  78Cupeprice Sun Jan 07, 2018 3:44 am

    Hi Kit1078

    Im thinking of buying the CPP F body spindles same as you. Have you had a chance to Install them? Im wondering if you came across any issues?

    Thanks
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    Post  Kit1078 Mon Jan 08, 2018 9:20 pm

    I've installed the CPP spindles. I can't post pictures for some reason, but they fit ok. A few notes: I didn't like the allen head socket screws they use to hold this wheel hub on, so I sourced some stock GM hub bolts from the junkyard. The calipers aren't actually 'corvette' calipers, they look more like knockoff. If I were to do it again, I'd just buy the bare spindle, and source the wheel hubs, rotors, calipers and brake pads. I didn't bother trying to weigh them compared to the original, but my arm scale says they're a little bit lighter. I can't say much for stopping power, I'm still dialing in the brakes. I did a manual brake conversion and I'm having some teething issues with that.

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