oaky guys i need to know everything needed for this swap.i have an 89 camaro maro with drums in the rear ,i found an 87 iroc at the junk yard with rear disc.now i already tokk of the big plte in the back that the dust sheild/mounting bracket correct?then alot of bolt and nuts.ebrake brackets and mounting stuff.all the lines bended already from the car.wat else do i need besides rotors and calipers?also wat do i have to do to complete this swap?like wat do i remove from the drums step by step instruction will be nice

 

get the chapest rotrs you can an evry1 nos you need a bunch of holes an slots u can do youself mark out a pattern with a sharpy markr an dril them and make shure dey r even to keep the ballances correct then take a dreml toll and put a sferical grinder in it you make th slots in it this way afta you dun take them to the locole chrom shop to get them chromed this will keep them lookin new for a LOOOOOOOONG time but to make this work you have to use the cheapest pads 2 sinc they will have to take the chome off where the pad goes then replace with the pads u want trust me this the best way to you stop you're maro camaro

 

shoudlnt it hAVE THE SAME BOLT PATTERN?

 

pattern shmattern just make shure it balanced you can bring it to your local machine shoop fo them to wiegth it rite they add or remov materal so it spin right

 

should be fairly simple every thing should swap right over, now that u have the knowledge about ho to remove the disk set up ull understand how it all comes together once you get the drums assemblies off... the bolt pattern on the hubs is the same.....correct me if im wrong...

 

yeah bolt pattern same, I talkd about drilllin and slotting the rotors

 

im just putting regualr $25 rotors from autozone.so its just remove and install correct

 

So whats a pair of drilled rotors sell for?

 

i have no clue

 

Owww my eyes....funny one, Slow.

 

Finally... someone got it!!

 

HA! That was a good one, on the sly. I had my own response but I held off...there's only 3 threads going right now on the same topic.


Ed

 

also one more quick ? do i need to get a diffrent master cylinder?i know i need a diffrent prop vavle and i alreay have one.

 

Why bother wasting your time with the '87 rear brakes anyways...aren't those the ones that had issues? Sorry if I'm putting out bad information, I didn't think the rear brakes were actually decent until the 1LE brakes came out. Your stock drums are better than the original disc brakes on these cars.

 

Incredible.... absolutely incredible.

Why don’t you go ask your friend and apparent teammate over at ‘Team Undercontrol.’ Just to jog your memory he did the same thing and thought his combo valve caused 2 brake lines to burst. We don't want that to happen to you now do we? I think you should use the new combo valve AND get an adjustable proportioning valve. Just to make sure you don’t leak brake fluid all over the place.

https://www.thirdgen.org/techbb2/sho...hreadid=257277

But then again… aren’t you supposed to be the guy with all the answers Mr. Master Mechanic? I wish I could find that thread where you advertised your services and everyone ripped you a new one based on all the basic questions you ask like… tell me how to do my brakes step by step!!

 

ohhhh lotsa tension here LOL

Hey really man, get the Master cylinder and prop valve off that Iroc in the junk yard

 

the other guy wasnt leaking by the lines it was by the seal of the ebrake bracket.so he replace both calipers and problem slove.so should i change the master or not?the master for drums and disc is the same part# at autozone im confused

 

That's because the same master was used from '90-92 on both drum and disc cars so they probably only gave you one number. Use it, you'll be fine.


Ed

 

yeah i have an 89 though.i guess same ****

 

Ed, it looks like you're getting sucked into the darkside.

If you're swapping parts you want to get the stuff from the 'DONOR' car. So if you get brake parts off an '87... then you tell the guy at the parts counter you have an '87.... yada yada yada

Just a few quick clicks got me this. Ed was right, 90-92 got the same master cylinder no matter what brakes came on the car. '87's got 2 different masters, 1 for disk/drum and 1 for disk/disk. This should answer all your questions now... and all that are about to hit you eventually.

 

slow i have look up the master under the 87 year and same part #'s.Thats why im confused.

 

www.rockauto.com

 

Remember when I said the 87 rear discs were worse than your stock drums? I wasn't kidding..

 

I'm getting ready to throw out a set of them myself... maybe I should tell this guy that I've fixed them and they work perfectly just like the stuff he tries to sell everyone else.

Now I'm feeling dumber for giving him that link since he likes to screw people over and doesn't care at all.

 

well i found that advance auto parts has the right master .so im getting it from them along with some pads.and then the calipers from autozone so im set thanks alot guys.

 

Have you not been listening to me? Your drum brakes better be shot or something. Why the hell you would replace them with '87 rear discs is beyond me. If you're going to go through the work to put discs on the rear, at least go with 1LE/LT1 brakes.

 

hey guys doing the swap in 2 weeks but need some quick help, all 89 master cylinders for both drums and disc have the same part #?didnt they use the same master 90 up?because if in 89 they were the same to i could use the one already and the car.now for the 87 they show 2 diffrent part # for the master but will 87 master and 87 prop vavle bolt on to my lines perfect?because i have an 89 prop vavle that i know will match up with all the lines.but then 87 master and 89 prop vavle will that work as in all the lines bolt on?

 

all the lines will thread in fine

 

yeah i figure that out at the junk yard,when i took apart the 2 differnt years and they bolted on fine.thanks alot guys

 

yep n/p

 

Why are you so intent on downgrading the brakes on your car?

 

DuronClocker: Perhaps he's trying to screw insurance over.... .

 

DuronClocker, im guessing that you know more about brakes then i do because i always thought discs were better than drums. this is incorrect?

 

Not when the drum brakes are actually decent and the 82-88 rear disc brakes sucked.. Very little line pressure gets to the back brakes. This makes drums more effective in the back than discs because calipers require a much higher line pressure to be effective than a wheel cylinder (drum brakes) does.

 

The early disc brakes take a regular beating on TGO (they certainly could have been better and the PBR's are a definate improvement), but with the repair kit, they worked fine for all practical driving situations. I used the parking brake regularly and never experienced any problems.

JamesC

 

well my buddy has the 87 rear disc and he attends scca solo 2 races and his brakes work great and all he has is hawks pads all around and an 89 prop vavle for awd

 

i made this change on my 82 camaro in 1987 and have had no problems- (not sure what year the donor car was) at the time i found the "4 wheel disk" master cylinder had a larger bore the rear drum model. a rear drum master will have no "pedal" and will work like you have out-of-adjustment rear brakes. grab the master cylinder, proportioning valve, and e-brake cables from the donor car. seems i remember stock rear pads were organic and fronts were semimetallic, but i didnt have good braking until i threw away my "american discount auto parts" metallic pads and put on an OEM set. i dont drive the car much and havent had a chance to put on a set of ceramics, but i suggest you try that.

 

You may find the following interesting:

https://www.thirdgen.org/forums/susp...fferences.html

JamesC

 

is the j50 the regular drum/disk master, or a different disk/disk master?

 

Front disc, rear drum. The disc, disc is J65.

JamesC