With support for the 4 channel rears (traction control) !!
This bracket is in final stages of the development and will feature the retention of the stock 98-02 backing plates with the parking brake and will be compatible with Traction control rears ( 4 channel ) and also the ABS only rears ( 3 channel ) a 340 mm OE rotor with a 4 piston GM Brembo caliper. All completely bolt on with very minor but reversible modifications
Reply below to show your interest !
As you can see this calipers lugs are too long, its easy to misidentify these calipers so I urge everyone to review the “ID your caliper post” before buying parts !
Backing plate pictured below, here we add 3/8-16 thread inserts so the backing plate can simply be bolted on from the inboard side. Installing the threaded inserts is a relatively simple task, the original backing plate has the correct sized holes to just simply run the thread insert tap down without any drilling, once threaded and the inserts installed we are ready to assemble.
Threading the backing plate allows us to put that backing plate right up close to the abs tone ring, necessary for two reasons. One is the original backing plate needs to be moved outward to match the shallower hat rotor and drum inside the hat. Two: this allows us the room to slip in a conversion bracket behind the original backing plate to hold our new 4 piston caliper
With trial fitment completed and only a few refinements to be made, parts are going to laser soon! A few final pics
from our test car install
Creating an install guide and outlining the hardware and parts needed for every install is up this weekend!
Parts have been sent to the test fitter, we are hoping to hear back by end of this weekend on final fitment !
Revision of the test fit parts are due in today, hopefully I can get these into the hands of our test fit volunteer for the weekend to prove out the rest of this set up !
Great news for the European Drivers!
On the German Autobahn the Stock Brake System is not the one you would trust.
I already did on my 99 LS1 the conversion to an 2016 Camaro SS caliper and disc for the front.
I know people who would buy the rear conversion in europe if you bring it into the shop.
Hope it will be soon, cant wait to feel the better braking 😉 !
Yes it is moving along, nicely actually, so its all falling into place and we should start taking order for these in the next week or so. We have confirmed fitment of all the required parts and I am just adjusting the brackets for offset, those are going off to the test car for final verification and then we can start cutting some parts and working on a install guide. I`ll attach a few more pictures of the last test fit with the right sized caliper.
Looks like it’s moving along can’t wait to see how it turns out !
Update: I want to thank our prototype test fitter for his time and efforts. Progress has been made in the continuing development of this brake swap. The specifics of his install revealed some changes we need to make to account for all offsets that these rears could have came with, spec is 2.75 for axle offset but reality is that it is a target not a true spec. So in this first trial fit we had a 2.640 offset to deal with, down to 2.70 we were good on the one piece bracket, but below that no-
So to address this, the bracket for the caliper will need to be stepped to allow shallower offsets like this. No biggie, just a design change. That lower offset also presented another problem, the retention of the original backing plate, there is literally no room for a nut on the housing flange bolts as the abs ring is now so near the deck, close enough that your not getting a nut on that bolt. That problem was forecast-ed and the solution was to install threads into the original backing plate, so we could thread into the backing plate for retention. This solution works out really well actually, the 3/8 thread inserts are already perfect size for the LS1 backing plate holes! No drilling needed, just use the thread tap for creating the needed threads the 3/8-16 inserts, just thread and install the inserts is all that needs to be done. So now with the backing plate threaded, plate in place and for this test fit, a shim behind the rotor to bring the offset into balance and it all looks good. Unfortunately, the calipers secured for the test fit were not the 13.3 variety, they were in fact the C7Z06 rear calipers, so axis wise these were long. So new calipers were ordered and I am making some adjustments to the design to account for that low offset. This is going to allow you to shim the caliper out to center over the rotor. So new samples going to the laser and we are looking at another week or two possibly to see any new results form these changes.
Okay sorry for the delay, there are no problems- the test fit was simply delayed and is now scheduled for this upcoming weekend
Thanks for all the updates!
Install to a vehicle is about to happen, parts are in the hands of the volunteer to fit these to a 98 TA w/ trac control. We are going to try and see if they can be installed without taking the rear apart (axles removed) We should know something late this week or weekend hopefully
All right 1st fit up parts are sent to the laser ! Should be about a week for those then we can get set up for a actual install on a 4 channel disc rear to document the install. Everything is falling into place !
This is what I need. 👍 Reach out when you have them ready. Thanks!
Okay guys, good news again !
the 4 channel tone ring or abs sprocket clears the backing plate and looks as if the backing plate will not need any modification for that either. Actual fit up of the prototype parts will happen in the next few days and then we can go on too hardware and install procedure. I do need to create a spacer for the abs pick up sensor so that will be the last detail I think. We are getting closer to having this become reality.
I’d be interested in this setup that’s actually what I’m trying to run the 1le brake setup all around onto my car.
Hi Cliff
Yes I am building them, I have had guys asking for this a long time so I`m putting all my effort into this, mostly for the 4 channel guys- right now it looks like the original backing plate may just need a little clearing by the actuator boss, the ring for the abs when we push the plate far outboard as possible looks like it will contact but what I see right now is very minor as far as interference.
John S,
matching fronts for this 340mm rear kit would be the 345mm 4 piston fronts ( 6th gen SS ) or even the 6th gen 1LE 370 mm 6 piston set up. Those will bolt to the stock 98-02 knuckle with just opening the caliper lug mount holes to 14mm, super simple there.
Hey Joe, Glad too, its what I love to do, make stuff fit that shouldn’t 🙂 With the the 3 channel rears that have no tone wheel (ABS cog) behind the axle shaft flange this is going to work. My official prototype are at the laser and I should have more info here in a week or so but so far it looks promising.
I’m in for a front and rear kit that retains the OEM parking brake setup! Thanks for keeping the platform alive and upgradable! Please keep us posted on progress !
-Joe
what are the matching fronts? I want the complete kit !!!!!
This is EXACTLY what I’ve been hoping someone would build. If you produce these I am 100% in!
Hi Jonathan, Working on this today, I wanted to make the bracket slip over but it appears right now that would give up some strength. For now I`m going to keep the bracket “whole” at least for the first set up / prototype. I have ironed out most of the details and have been test fitting the parts, everything is looking great so far. Added some pics of the parts for proof of validity. The pads line up perfectly with the outer diameter of this rotor at 340mm and this set up will fit into 18`s with ease. Some 17`s are most likely a possibility as well but those would be select, forged and billet type wheels with more barrel than a cast wheel. I do need to find an axle stub with the abs tone ring on to find the depth I need for the sensor placement. Lots of guys have asked for this over the years I now have some extra time to work on the development of the custom parts needed to make it happen !
I am interested in this !