Are the Dual Piston Rear Calipers noticeably better?

[tinkersmithinc]

At least you’ve got the option with the 18’s to add C7 non-Z51 Calipers (Part Numbers) with adapters. You’d also still be able to install x drilled & slotted OE rotors with the C7 kit.

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I saw those, and I know there's a small company who sells conversion kits, but I guess what you're saying is that we can fabricate, retrofit it ourselves?

And how would that work differently for the front and rear? Apologies if I missed an explanation of this somewhere else!

 

[tinkersmithinc]

Correcting myself: I just realized they have 2 products, one bracket for the proper 6 piston caliper upgrade for the front (minimum 20" wheels), and the other bracket for the 4 piston upgrade for the rear (minimum 18" wheels). And exclusively for a limited set of donor corvette and cadillac calipers. Obviously this would save money if you didn't wanna buy thousands worth calipers and have a donor at home. I don't know how I feel about diy fabrication of those, unless you're a decent machinist with a decent mill?

Just to avoid confusing anybody else reading these forums, these brackets are exclusively for using those particular Corvette and Cadillac donor calipers, and have nothing to do with any ot hg er rotor+caliper set you may buy for aftermarket brake upgrade (from $400ish amazon sets to $3k wilwood sets): those sets would be simple bolt on parts (apart from exceptional minor grinding for some wheels), so far as you get the right rotors and pads.

 

[tinkersmithinc]

Thanks Pete, as this most definitely qualifies as bang for the buck! But I just went from a 20" +18, to a 17" +18 wheel for better Off-Road performance :-/
I will most definitely make certain there's no way to pull this off? But at a glance, it doesn't look do-able?
It's never easy to have your cake and eat it too lol

If this is not an option, is there another bolt on solution out there that you know of?

[I promise Im not being lazy, there are a few subjects on here that now have so much info that it becomes a matter of having the time to read through all the posts to be able to get the pertinent facts (which is not a bad thing, except for the amount of time it takes). Right now in my life Ive only got a few minutes a day free to do things like this and Im doing my best to spread them around the activities Im involved in lol]

And if that solution is ordering 4 or 6 piston calipers and fabricating my own brackets?? Then thats what it is.... My goal here, as with all my modifications, is to increase the performance, but do so on a moderate budget. Similar to the long travel control arms, I don't believe in paying someone for something I can do myself....

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In case you didn't come back to this thread, 18" wheels work fine with 4 piston 2019+ front GM calipers: parts no 13545382 and 13545383. There are even very cheap aftermarket versions on amazon: https://www.amazon.com/Premium-Compatible-Chevrolet-Silverado-2019-2020/dp/B0CDKG23KN

 

[5StarCustmSolutns]

In case you didn't come back to this thread, 18" wheels work fine with 4 piston 2019+ front GM calipers: parts no 13545382 and 13545383. There are even very cheap aftermarket versions on amazon: https://www.amazon.com/Premium-Compatible-Chevrolet-Silverado-2019-2020/dp/B0CDKG23KN

Thanks for the info..
Sometime in the very near future I'll pull my truck into SpeedShop 2120(aka my garage) for a couple weeks worth of work... Whle the calipers are off, I'm planning to see how a pair of front 2 piston calipers might could work on the rears?? See if I can't fab my own brackets and make that happen??

That's the most cost effective (bang for buck) option I had come up with..

However, you just made me think outside the box a little there.... It would make sense for me to buy a couple different 4 piston calipers and see if I can make them work front and/or rear??
** I realize that might not read well to some, but I'm not advocating anyone modify or change anything with their brake system, I'm strictly talking about ways I might be able to increase the braking performance on my personal custom Off-Road rig **
My PowerStop rotors have been on for 6-7 years now....been turned once. I've had a brand new set of OE rotors laying in my shop for almost 2yrs now, and have &0 dollars in them. Was planning to slot/dimple/install them while truck was in....be nice to add some better calipers same time??

Or at the least some better seals? Has anyone ever heard of any high(er) performance caliper seals for the GMT900?



EDIT: I just realized there was a link in your post (got up too early lol). When I clicked on it my first though was how much those look like the two piston OE calipers on my truck now? Then it occured to me that: The 4 piston and 2 piston calipers should be the same height, or VERY close to the same height? With the 4 piston naturally being wider..
So I checked rotors and the 19-20 is 15mm larger, so 7.5mm per side... I have well over 7.5mm to spare between my calipers and the inside of my 17" wheels. It's hard to measure but I would say I have 18-19mm?
The derterminate is going to be how much further the 4 pistons protrude out past the face of the rotor -vs- my +18 offset/backspacing?
Off the top of my head, I think they're gonna be fine!?!? OE offset was +24.. Hard to imagine GM engineers approving a design with a 6mm or less gap between the edge of the caliper and the back of the wheel?

Man, moving the 2 piston calipers from the front to the back and buying a pair of 4 pistons for the front would be a serious bang for the buck upgrade





EDIT 2: Found these specs on the (proclaimed) only ALL AMERICAN MADE performance brake upgrade manufacturer's website, these guys here >> https://ssbc-usa.com/
These are a 6 piston front caliper.. And a 4 piston rear.. And cost close to $5k lol.. But do look like the may be the option that is the most bang and the most buck?

I just wanted to put them here to give a visual for the clearnace concerns / measurements