Spindle Options

UC645

Royal Smart Person
Apr 20, 2020
1,240
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Kittanning, Pa
Currently I’m doing some bench racing for future upgrades on my Monte and one thing that’s been stuck in my head is a spindle upgrade.
I’ve been looking at SSM’s “Game Changer” kit, and while it’s the most cost effective out of the box for the gains SSM claims, it comes with a caveat that kinda breaks the deal for me: The spindle SSM offers has clearance issues with the brake kit I’ve been eyeing. Big Brake Upgrade offers sever adapter brackets that can be use to convert A, F, G, X and S10 spindles to the huge 14” rotor and 4 piston Brembo combo that came on the 2010-2015 Camaro SS. BBU’s brackets interfere with the spindle due to the required spacing of the caliper and rotor, and to my understanding there’s no way around this.

So I’m looking for suggestions on what spindles could be swapped into a G with relatively little fuss (or a lot if the benefits are there) without asking for a kidney in return like the AFX spindles from ATS.


I’ll also add that the whole point of this is to use as much stock replacement components as possible so breakage/failures aren’t as much of a hindrance as they would be with an aftermarket setup, like from Wilwood for example. This is why I was interested in BBU’s conversion brackets.
 
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Are you looking for a drop in ride height? Is something like this an option with those brakes?

 
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Look at a company in Oregon named Kore 3. I believe it is kore3.com. They build kits using all stock corvette parts for different spindles.
Kobin’s stuff is pretty neat, but most of it uses 2 piston Corvette stuff and the other option is the 6 piston ZR1 which is uber expensive. I’ve already got 4 piston Brembos from a 6 Gen Camaro in hand so I'm locked in to that route. The main upgrade I’m after now is a bearing pack improvement, as I don’t trust the Blazer bearing packs to handle much cornering abuse.

Are you looking for a drop in ride height? Is something like this an option with those brakes?

Not looking for a drop in height, the car is about 2-1/2 inches currently and it’s too low with the current trimmed springs. I was really after geometry improvements, but I can get all I want with a little fabrication and parts from the SPC catalogue.
LS1 brakes are better than stock but only marginally better than the Blazer spindles. The 4 piston Brembos I bought a while back may be overkill, but they’re more track oriented than the LS1 stuff imo. Just after heat control on that front.

The main focus since I made this thread has shifted to an improvement in bearing packs, as I don’t trust the Blazer spindle bearings to handle cornering forces on top of day to day driving. That and stock replacements are shoddy compared to 20+ year old stock units.

BBU offers a hub that takes a 1LE bearing setup for the stock spindle and is a serious consideration. The other option is CPP’s C7 bearing spindle that’s claimed to fit C7 Corvette brakes, but has only been tested with C5/6 setups. And as far as I’ve found, no 6 piston ZR1 calipers have been fitted to those spindles.

Might buy a set of those and eat the restocking fee if C7 stuff doesn’t fit without some easy modifications. By the looks of it all that would be required is clocking the caliper further forward to a more 9-10 o’clock position rather than the 11 o’clock position that these spindles are set up with out of the box:

 
Kobin’s stuff is pretty neat, but most of it uses 2 piston Corvette stuff and the other option is the 6 piston ZR1 which is uber expensive. I’ve already got 4 piston Brembos from a 6 Gen Camaro in hand so I'm locked in to that route. The main upgrade I’m after now is a bearing pack improvement, as I don’t trust the Blazer bearing packs to handle much cornering abuse.


Not looking for a drop in height, the car is about 2-1/2 inches currently and it’s too low with the current trimmed springs. I was really after geometry improvements, but I can get all I want with a little fabrication and parts from the SPC catalogue.
LS1 brakes are better than stock but only marginally better than the Blazer spindles. The 4 piston Brembos I bought a while back may be overkill, but they’re more track oriented than the LS1 stuff imo. Just after heat control on that front.

The main focus since I made this thread has shifted to an improvement in bearing packs, as I don’t trust the Blazer spindle bearings to handle cornering forces on top of day to day driving. That and stock replacements are shoddy compared to 20+ year old stock units.

BBU offers a hub that takes a 1LE bearing setup for the stock spindle and is a serious consideration. The other option is CPP’s C7 bearing spindle that’s claimed to fit C7 Corvette brakes, but has only been tested with C5/6 setups. And as far as I’ve found, no 6 piston ZR1 calipers have been fitted to those spindles.

Might buy a set of those and eat the restocking fee if C7 stuff doesn’t fit without some easy modifications. By the looks of it all that would be required is clocking the caliper further forward to a more 9-10 o’clock position rather than the 11 o’clock position that these spindles are set up with out of the box:

If I remember correctly C5 brakes fit with the mods 81cutlass did in that link, keeping costs down by making the hubs and brackets. The hub seems to be nearly identical to some kits, even BBU's, and is made from a G Body brake rotor. But I'm new to both aside from reading, and I haven't read that material in a while. I'm right there with you as far as my feelings towards tapered vs Blazer bearings but have no real experience with aftermarket/ specialty spindles. I'm definitely going to follow along and try to learn something though.
 

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