Just wondering....

Can the 4th Gen rear disc and rotor setup be used on our 3rd gens? A friend of mine found a crashed 94Z with the rear in good condition....just wanted to know if this is possible? Thanks.

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1986 WS6-Equipped 5.0 TPI Trans Am
Random Tech High-Flow Cat
Two Chamber Flowmaster Muffler
Megs Custom 4.5" Stainless Steel Rolled Tips
1999 Grand Am GT In-Dash CD Player w/Equalizer(fits like '86 original)
5% Tint On Rear, 35% On Sides
http://www.pitt.edu/~zyhst/trans86/

OTHER RIDE:
1998 C5 6Spd. Corvette Coupe
Silver w/Gray Leather Int.
12/14 Options
Stock(for now)
Best 1/4th: 13.5 @ 104.4MPH

 

Uhhh...."Buller?.....Buller?.....Buller?"

 

Anyone? Anyone at all?? Dont make me start speaking in Hungarian.

 

Yes it is possible I have done the swap on my camaro The swap is easy except for the emergency brake cables the dont really match up but the can with right tools.

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1992 383 Z-28 w/SuperRam intake and ACCEL DFI, PA Racing K frame,SS hood,SS rims

 

What about ABS? Does that have anything to do with the setup? Like, will it work with the 3rd gens if the 3rds are not set up for ABS? Or will it cause a problem? Not too familiar with brakes,thats the reason i am asking.

------------------
1986 WS6-Equipped 5.0 TPI Trans Am
Random Tech High-Flow Cat
Two Chamber Flowmaster Muffler
Megs Custom 4.5" Stainless Steel Rolled Tips
1999 Grand Am GT In-Dash CD Player w/Equalizer(fits like '86 original)
5% Tint On Rear, 35% On Sides
http://www.pitt.edu/~zyhst/trans86/

OTHER RIDE:
1998 C5 6Spd. Corvette Coupe
Silver w/Gray Leather Int.
12/14 Options
Stock(for now)
Best 1/4th: 13.5 @ 104.4MPH

 

man you guys, no replys to such an easy one,
ok, well anyways, from what ive been taught is that the fourth gen rear does just bolt up with modification to the EBrake cable,
you will need the proportioning valve to get the full oppurtunity of having four wheel disk. if you get it off a Z28 it has posi in it. and better gears. ABS is all in the Brain, the sensors. and the brakee booster/ setup in the engine bay.
type in my name into the search, and then theres two, "what can i get from this" and something else youll be able to deduct.

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91 FireBird 305 V-8
Edelbrock Catback, Fourth Gen Console. i have six cupholders. all for starbucks!
ghetto rigged cold air intake,
"My G/f Once Wanted To Break Up Because Of Competition With The Car."
GheTTo Riggers INC.
We Make Mcgyver look Like Crap
God Created The Earth, And Then Turned Up The Bass

 

FireBretha....

Thanks man...you've been a big help...i really appreciate it.

------------------
1986 WS6-Equipped 5.0 TPI Trans Am
Random Tech High-Flow Cat
Two Chamber Flowmaster Muffler
Megs Custom 4.5" Stainless Steel Rolled Tips
1999 Grand Am GT In-Dash CD Player w/Equalizer(fits like '86 original)
5% Tint On Rear, 35% On Sides
http://www.pitt.edu/~zyhst/trans86/

OTHER RIDE:
1998 C5 6Spd. Corvette Coupe
Silver w/Gray Leather Int.
12/14 Options
Stock(for now)
Best 1/4th: 13.5 @ 104.4MPH

 

I had a few questions about this swap. Some backround info on me: 1985 Z28 with rear disks.

1) What year brakes did you swap into your car? 1993-1997 or 98+

2) Is this swap as simple as going to the local parts store and buying 2 rotors, 2 calipers and pads for a 4th gen. Then going home and putting them on as if they were made for the 85.

3) What do you have to do to the e-brake cables to make them work correctly?

4) Anything that I should know about that I have not thought of.

I also want to use my 15" wheels. I am going to be going home for Thanksgiving break on Friday, Nov. 16th. If you could reply before then, that would be great.

Thank You,
Jesse

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85 Z28, 305 TPI A4
pretty stock with a few toys
15.2@91mph
http://photos.yahoo.com/j_hougnon

http://screamindeamin.cz28.com/images/jesse/

 

I've submitted a tech article to thirdgen.org a week ago that shows how to do this for a drum setup (rear drum to 98+ disc). I expect a lot of the information would be helpful for you, too.

Anyone know how long it takes them to publish a tech article?

I can't answer the rear disc to 98+ disc questions (I don't know what the axle flange on the 85 disc looks like, or how the e-brake works), but I can tell you that two different types of stock 15 inch rims fit (82 turbo cast, and 91s). Your rims may be different, but the heat-sink fins on the calipers are normally the only things to get in the way, and they can be ground down.


[This message has been edited by MichaelRBrumm (edited November 11, 2001).]

 

Micheal Brumm, can you email me your tech article so that I can read it before I go home.

j_hougnon@hotmail.com

Thanks,
Jesse

 

Yeah...I noticed they posted it this morning...thanks, looks like it'll be very helpful

[This message has been edited by 90RSErik (edited November 13, 2001).]

 

They posted it:

https://www.thirdgen.org/newdesign/t...reardisc.shtml

 

My car already has rear disk brakes. Will the 4th-gen calipers work as a direct replacement with the exception of the e-brake cable? What about front calipers from a 4th-gen on a 3rd-gen? My brakes suck, so any help would be appreciated.

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86 iroc, tpi, compucam, headers, pace-setter cat-back, stageII chip, afpr, air foil, filters, maf screens removed.

 

My understanding:

If you have

- 10-bolt disc rear end
or
- 1989-92 9-bolt disc rear end

then the 98+ (LS1) rear disc setup will work on your axle flanges without drilling or cutting the flange.

88IROCARMY talked about this in a previous discussion (which gave me the idea of doing it to my drum rear):
https://www.thirdgen.org/messgboard/...ML/002629.html

Visit his website (listed in one of his messages) for more information.

Neither the 4th gen front disc brake rotors nor calipers will work on your 3rd gen front end without modification.