[mudslinger]

My sons 68 GTO front factory disc brake calibers started leaking
We be looking to upgrade to something with a little more stopping power to compensate for the 464 stroker under the hood.
At this point staying with stock was thrown under the bus some time ago.
Looking for a kit that has calipers, rotors, and hardware that will work with oe suspension and 17" Rally 2s

Thanks

Bill

[arcitech]

Try PST (Performance Suspension Technology) I used them for a drum to disc conversion, and their stuff was/is still working great. Some will advise that the cheaper kits have some Chinese made parts and that is hard to avoid now days. If you have 17" wheels, then most kits up to a 12" rotor should work, but I would stick to the stock style of hardware to ensure that you will be able to get replacement parts (i.e. pads, rotors) locally without having to wait for delivery (wilwood, brembo etc. may take 2-10 days depending on the part needed).

[mudslinger]

Thanks arci
Brents 68 GTO has the 4 piston calibers on the front. I took the leaking side apart last night, the piston walls show a lot of pitting I don't know if they can be saved. Located some remands for $173 don't think we want to go that route cause probably have the same issue a couple years down the road.
Been reading on here some of you have switched out your 4 pistons for a single piston 69 caliber. I can see a big advantage as far as price.
Any disadvantages besides not being stock.
Also besides changing out the mounting plate for the 69 calibers is there anything else that needs changing

Thanks

Bill

['ol Pinion head]

'69 style caliper brackets, dust shields, & single piston A-body calipers & hoses are what you need. The factory 4 piston calipers & caliper brackets are best relocated to high end resto's. If you were closer, could prob do a swap of some sort.

[arcitech]

I only have experience going from drums to disc, but the stopping ability and overall peace of mind is worth it. As much as I love a classic restoration, any car that is going to get used should have the most dependable parts possible. There have been good and bad stories about the factory 4 piston setups from GM since they were first introduced. Like anything, if you don't exercise it, there is no guarantee that it will work when you need it. Lessons have been learned and the newer parts benefit from the mistakes of the past. I can see either path could work for your needs, but if you are really looking at upping the performance, then it is time to step away from the stock and upgrade to bigger parts with better performance. Of course that all depends on your finances too!!

[blue67gtoragtop]

For my 67, I used the kit from Right Stuff Detailing...came with Timken bearings...so far, so good and the install was easy...

[HWYSTR455]

How big and how much money will you spend are the questions. Maybe look at KORE3 and Wilwood, though believe for the bigger brakes you need to mod the spindle.

EDIT: The Right Stuff 13" kit uses PBR calipers and looks good, fair price too. I used a rear kit on the clone and am totally satisfied with it.

.

[john31s]

Originally Posted by HWYSTR455

The Right Stuff 13" kit uses PBR calipers and looks good, fair price too. I used a rear kit on the clone and am totally satisfied with it.

.

Won't fit behind the YO 17" Rally IIs. I had to return the kit I got. The biggest I think you can put back there would be the 6 piston Wilwood Dynalite 12.19" rotor setup. I'll get some this summer and try them on my car.

[Sidponcho]

As OPH suggested, get the 69 and later style calipers and she'll stop as good as she should.

[HWYSTR455]

Originally Posted by john31s

Won't fit behind the YO 17" Rally IIs. I had to return the kit I got. The biggest I think you can put back there would be the 6 piston Wilwood Dynalite 12.19" rotor setup. I'll get some this summer and try them on my car.

Bummer. Then the C5 setup I have certainly won't fit behind the YOs either. I was looking at those and the US MAG alternatives.

.

[mudslinger]

Originally Posted by john31s

Won't fit behind the YO 17" Rally IIs. I had to return the kit I got. The biggest I think you can put back there would be the 6 piston Wilwood Dynalite 12.19" rotor setup. I'll get some this summer and try them on my car.

Well that answer that question. We asked Right Stuff that exact guestion , won't have to wait for a reply from them

Thanks a bunch

Bill

[Pontirag]

Originally Posted by mudslinger

Thanks arci
Brents 68 GTO has the 4 piston calibers on the front. I took the leaking side apart last night, the piston walls show a lot of pitting I don't know if they can be saved. Located some remands for $173 don't think we want to go that route cause probably have the same issue a couple years down the road.
Been reading on here some of you have switched out your 4 pistons for a single piston 69 caliber. I can see a big advantage as far as price.
Any disadvantages besides not being stock.
Also besides changing out the mounting plate for the 69 calibers is there anything else that needs changing

Thanks

Bill

they can be saved, many vendors install stainless sleeves witch solve the problem for good and all. those dual piston disc brakes are rare and valuable and were also used on corvettes that raced

[mudslinger]

Originally Posted by mudslinger

Well that answer that question. We asked Right Stuff that exact guestion , won't have to wait for a reply from them

Thanks a bunch

Bill

Right Stuff got back to us on our question whether they would fit up with the YO 17" rallys. They said they would pair up .
This is the kit we asked about. http://www.getdiscbrakes.com/afxwk31cz
Also looking at the Wilwood kit http://www.wilwood.com/BrakeKits/Bra...o=140-7675&yea

Thanks
Bill

[HWYSTR455]

Originally Posted by mudslinger

Right Stuff got back to us on our question whether they would fit up with the YO 17" rallys. They said they would pair up .
This is the kit we asked about. http://www.getdiscbrakes.com/afxwk31cz
Also looking at the Wilwood kit http://www.wilwood.com/BrakeKits/Bra...o=140-7675&yea

Thanks
Bill

That's the hybrid kit I mentioned, and John31s tried them with YOs, and in his experience, it did NOT fit.

Is that the case John31s, or did I get that wrong?

.