New rear 300mm brakes compatible with 91-96 caprice sedan (tested) and parking brake - successful completed!
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for any disc conversion, disassembly is necessary - axle shafts have to be removed to swap backing plates
To make successful instalation, you need:
1. Remove axle and minimize axle hub diameter from 167 to 156mm
2. Resize on brake disk center hole from 64 to 78mm
3. Drill 5x127 pattern too + Remove the diametral protrusion from the rear side of the disc into alignment with the brake plane
4. Mountig plates.
5. Buy other parts.
1. Remove axle and minimize axle hub diameter from 167 to 156mm
2. Resize on brake disk center hole from 64 to 78mm
3. Drill 5x127 pattern too + Remove the diametral protrusion from the rear side of the disc into alignment with the brake plane
4. Mountig plates.
5. Buy other parts.
What are the part numbers for the calipers you used? Pads? Rotors? Just wondering what the specs are for those to gauge brake clamping force and determine the front/rear ratio. Specifically the caliper piston diameter, brake pad height, and stuff like that. Also which brake pad compounds are available for that shape of backing plate
Parts:
1. Opel Insignia rear calipers. Option J61/J62 (for 315mm rear brake disks)
It is important that the pull ball is the same as in the picture: the ball is at the top, but not at the bottom. This is the type of calipers I used.
СУППОРТ ЗАДНЕГО ТОРМОЗНОГО ДИСКА OPEL INSIGNIA
запчасти для узла СУППОРТ ЗАДНЕГО ТОРМОЗНОГО ДИСКА OPEL INSIGNIA
www.ilcats.ru
2. Brake pads: GM 13343451 (as example) or analogs
3. Mercedes W221 vented rear brake disks: ATE 24.0122-0229.1
Remember:
With this kit it possible use stock wheels too!!!
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Given the amount machining needed, would it be possible to just remake the mounting plates so they fit the stock 9C1/impala hardware?
They too fit that stock aluminum wheel you pictured as that is the set up I have on the 91.
Granted, your present setup maybe easier for european members.
They too fit that stock aluminum wheel you pictured as that is the set up I have on the 91.
Granted, your present setup maybe easier for european members.
I do not know. Coz mountig plates developed from 0.
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When referring to hardware, do you mean rotor, caliper & abutment? What about the park brake, which is why he made the caliper choice he did?
As you say, this setup may be more viable for Euro Caprice owners, but maybe some here would be interested in having the bracketry or drawings for them. I'm not sure there's enough demand for rear disc conversions that can't be supported by existing resources here in the US, at least for sedans. Wagons are little more challenging, but regardless, the change to rear discs is beneficial, and Vlad worked hard on his version (for sedans).
There could be some concern with caliper piston sizing vs the OEM disc setup, so it's not clear how this kit compensates for that. The rotor is larger than OEM, so the clamping point of the caliper would be further out, but as far as piston area and master cylinder sizing, it's probably not going to be the same as the JL9 discs....but those had their issues, too, with the stock proportioning keeping them from doing their "fair" share of the work.
Most of the time people here want something that is turn-key/bolt-on, with no or minimal machining or modification of the existing housing, axle shafts, etc. required. Rotor stud pattern & hub register are understood as "must have", but not everyone has easy access to a shop that can make those modification in a cost-effective or timely manner, so that can be a challenge.
For Vlad - if you're confident in the viability of the kit development and want to offer something, you're going to have to think about shipping as an offset cost to what is currently available here. The other thing is that you want to come with a fully detailed installation, painted or plated parts, and list it in the Parts for Sale area, so people understand what you have to offer, and what the cost may be. The essential parts are the brackets....everything else is probably obtainable here, given the right part spec info. Shipping anything MORE than brackets (machined rotors, calipers, etc) would be cost-prohibitive, if I understand your location.
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I do have some OE disc backing plates on hand....I won't deny it. Probably more than just about anyone except some Impala specialty dismantlers, but most of them try to keep the backing plates with the housing as a unit since it makes the combination of parts much more valuable than separated. Hated seeing the "Cars for Crushers" (Cash for Clunkers) take so many disc brake cars out of circulation back in 2009.
My biggest issue is that I have too many of one side vs the other....but generally, being cast iron, they don't wear out, but they CAN be broken or bent, which renders them useless.
My biggest issue is that I have too many of one side vs the other....but generally, being cast iron, they don't wear out, but they CAN be broken or bent, which renders them useless.
One interest thing is that mountig plates possible make fit to wagons too. And for vans.. probably..
Why?
This is a design feature. In general, in the process of searching for a solution, I faced exactly this task as well. Well, that happened, according to the plan, a simple and universal solution. look and think carefully at the mounts to the axle and caliper bracket. between them you can make spacers of different metal thicknesses: 0.5mm, 1mm, 2mm or any needed thickness.
That is why mechanicaly not matter sedans or wagons.
it is possible to longitudinally position the caliper bracket relative to the disc. both to the center and to the outside.
Why?
This is a design feature. In general, in the process of searching for a solution, I faced exactly this task as well. Well, that happened, according to the plan, a simple and universal solution. look and think carefully at the mounts to the axle and caliper bracket. between them you can make spacers of different metal thicknesses: 0.5mm, 1mm, 2mm or any needed thickness.
That is why mechanicaly not matter sedans or wagons.
it is possible to longitudinally position the caliper bracket relative to the disc. both to the center and to the outside.
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The only thing I can say about the wagon is that it uses a different mounting pattern on the housing, with a different offset or standoff dimension. The flat bracket might work, but the other considerations include rotor & caliper sizing, as I would not recommend a rotor smaller than the C5/C6 Corvette 12" (305mm) x 28mm thick version in my wagon conversion kit. The need for stiffness & stability of the caliper mount has to be given it's appropriate degree of attention, too. I'm satisfied with the robust design of my parts.
Attachments
If those would fit inside 15" wheels, I'd be all for that kit and that's what I would've gone with. So far, the SSBC kit has served me well, and I've been beating the crap out of it daily. Those mounting plates are sturdy, and it looks like Vlad's mounting plates are even beefier. Even the brake bias has been surprisingly decent after I went with a 50/50 prop valve. I just wish it hadn't taken quite so much fiddling to get it working.
Ultimately I'm planning to go with a Moser Ford 9" rear end with Wildwood brakes anyways, so it's all kind of moot for me. Though I am still trying to decide which direction I'll go for my second wagon... 😁
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