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Grand Am rear calipers? Who dunnit?

 
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jmakinen
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PostPosted: Mon Jun 27, 2011 2:18 am    Post subject:  Grand Am rear calipers? Who dunnit? Reply with quote

Has anyone tried out the Grand Am rear caliper upgrade? I was looking through some old posts on here, which led to a loooooonnnnnnngggg search on gpforum about this upgrade. Basically, they use the same pads as the Grand Prix rears, and fit their rotors. A little grinding on the Grand Am caliper bracket is involved. Anywho, what's the verdict? Supposedly, they're made of aluminum, so they are lighter. Also, they are finned, which looks better matched to the f-body upgrade. So are the rear calipers & rotors the same between the GP and Impala? Sorry I would normally search myself, but it's 2:16 am, I searched 1 1/2 hours for this info, and I'm going to sleep as soon as this post is up. Oh, and here's the best link I could find.

http://www.clubgp.com/newforum/tm.asp?m=3496409
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Frank4202
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PostPosted: Mon Jun 27, 2011 10:54 am    Post subject:   Reply with quote

Meh the fronts do the majority of the braking. Instead of doing the swap, why not just spend half the money on good stock parts?

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jmakinen
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PostPosted: Mon Jun 27, 2011 11:09 am    Post subject:   Reply with quote

I already got about $800 tied up between the f-body calipers and brackets, tap & drill bit, pads, rotors, ss brake lines, paint, brake grease, brake fluid, and now hard lines... another $30 for junkyard parts isn't gonna faze me right now. I'm halfway through my swap (blaming MI salt loving winter roads) and if this is a decent looking upgrade that uses the same pads, and saves weight, then I'm down.
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IffyG
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PostPosted: Mon Jun 27, 2011 11:22 am    Post subject:   Reply with quote

Remember if you are getting junkyard parts you are going to want to tear down and rebuild the calipers... but I'd probably use them as a core and get rebuilt ones at a parts store. Either way, it's not much of an upgrade and isn't really worth your time unless you are trying to squeeze every last tenth out of the car at the strip.

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jmakinen
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PostPosted: Mon Jun 27, 2011 11:58 am    Post subject:   Reply with quote

IffyG wrote:
Remember if you are getting junkyard parts you are going to want to tear down and rebuild the calipers...


Got that part, rebuilt my f-body calipers, so I don't think these would be much different. Don't really care about performance, I just think that the rear calipers look UGLY compared to the camaro calipers. Think these will match a lot better:

http://imageshack.us/photo/my-.....brake.jpg/
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IffyG
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PostPosted: Mon Jun 27, 2011 12:59 pm    Post subject:   Reply with quote

I don't doubt they will look better, just making sure you knew you should rebuild them before trusting them. We have a lot of newer members lately that take shortcuts and do stupid stuff (hence my avatar <------).

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jmakinen
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PostPosted: Mon Jun 27, 2011 1:09 pm    Post subject:   Reply with quote

Alright, think i'm gonna go for it, if I do i'll make a write-up of some type, and take some pics for the folks that are interested. I'll also take some weight measurements too, just to find out how much lighter they really are. So can anybody confirm that Impala and Grand Prix rear brakes are the same? That's really the only thing I'm unsure of at the moment, and I haven't found anything saying they are not...
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The_maniac
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PostPosted: Mon Jun 27, 2011 1:47 pm    Post subject:   Reply with quote

jmakinen wrote:
So can anybody confirm that Impala and Grand Prix rear brakes are the same? That's really the only thing I'm unsure of at the moment, and I haven't found anything saying they are not...


My assumption is they are the same. I just did a look up on my '04 Monte rear brake (as I figure all these W-bodies will cross ref). According to Murrays/O'reilly's, the '04 Monte rear caliper also fits the '97-'03 GP and '00-'09 Imp. And a host of other non-W-bodies.

Hope that helps. Hope your mod goes well and is worth while. Good luck!! Very Happy
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PushrodPower
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PostPosted: Mon Jun 27, 2011 3:52 pm    Post subject:   Reply with quote

Frank4202 wrote:
Meh the fronts do the majority of the braking.


Like around 90 percent. My rear calipers are original and still look brand new. Why I only changed the fronts.

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jmakinen
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PostPosted: Mon Jun 27, 2011 5:09 pm    Post subject:   Reply with quote

Wish I could say the same about my rears... there is so much rust on them it's ridiculous. So far all of my hard brake lines have been too corroded to reuse in my attempts to install SS brake lines. I HATE SALTY ROADS IN WINTER!!!!! That's another reason for looking into these, aluminum doesn't corrode like iron does.
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k6ng6r00
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PostPosted: Mon Jun 27, 2011 10:56 pm    Post subject:   Reply with quote

How in the world did you end up spending 800 on f body calipers??? and how am i the first one to question this??

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IffyG
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PostPosted: Mon Jun 27, 2011 10:58 pm    Post subject:   Reply with quote

k6ng6r00 wrote:
How in the world did you end up spending 800 on f body calipers??? and how am i the first one to question this??


Doesn't seem too unreasonable to me once you read what he has purchased so far.

Quote:
f-body calipers and brackets, tap & drill bit, pads, rotors, ss brake lines, paint, brake grease, brake fluid, and now hard lines

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jmakinen
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PostPosted: Tue Jun 28, 2011 6:48 pm    Post subject:   Reply with quote

forgot to say rebuild kits too, that was $80 itself...
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