ANDYZ28

edmiller88, I just sent you some pictures to post. I did the best I could with the annotations. That's with regard to the "torque specs".

88 350 tpi formula

iTrader: (9)

AndyZ28 Is it rare to have 9 bolt with 1LE brakes? My friend has a 89 formula 350 with that set up.

88 350 tpi formula

iTrader: (9)

AndyZ28 Is it rare to have 9 bolt with 1LE brakes? My friend has a 89 formula 350 with that set up.

ANDYZ28

Yeah,I know. And thats the way I got the car!
Kinda weird, don't you think?

88 350 tpi formula

iTrader: (9)

That it is I also noticed my freind with a b4c camero has them on the back also. why on the back only? I would think the frount it better.

88 350 tpi formula

iTrader: (9)

I almost for got I got the plates and brakets finally so I guess I can sigh in relife that I got them in time. Also are the rears getting limited as well? how much of what is left?

99Hawk120

Look, I don't know why you guys keep calling the aluminum rear discs "1LE brakes". They are not. They are simply the rear brakes that were in use from 89-92. There's nothing rare about them, if you got discs from 89-92, that's what you got.

1LE refers to the FRONT DUAL PISTON BRAKES only!

99Hawk120

Damn double post.

[This message has been edited by 99Hawk120 (edited April 27, 2001).]

ebmiller88

iTrader: (7)

Thanks for the suspension shots and the torque specs, Andy. I will try to post them on the site if I can figure out how to do it. My fiancee is a whiz at this computer stuff so she'll be helping me out. If not, I'll send them to someone on here that knows how.

88 350 tpi formula

iTrader: (9)

Ok cool it! no reason to flip.

did the 88 1LE cars have the old style rear disc? Just want to know!

ebmiller88

iTrader: (7)

Ok, I'm having trouble posting the pictures that Andy sent me. Anyone know how to do this? I can send them to someone if they know how and wouldn't mind putting them up. Any help? Thanks..

Apeiron

Send them to me, I can do it.

CrazyHawaiian

Hello, i'm a newbie when it comes to this stuff, but would this brake upgrade be better than an after market upgrade like Baer?? Im going to be starting a project 92 z28 and I really want the best braking power I can get (since its gonna go kinda fast). All this talk about only being able to do 50 more, i better order the parts already!!!! hehhe thanks!!

------------------
--- Currently ---
Maroon 1989 Camaro RS
Crappy 305 TBI / Auto
Hypertech Stage 2 Chip (and 160/ThermoStat)
2.5" Pipes, No Cat, Flowmasters (Dual)
GT Grant Wheel

Planned: just tint!! (its a lost cause!)

--- Next Project ---
1992 Camaro z28 (5.7ltr / Auto)
K1 Interior Kit, Sparco Seats, Tweeded Interior, 6 pt Rollcage
TurboCharged L98 w/ internal work and T56 Tranny swap
Full Suspension (Eibach, Sphon, Undecided Shocks), Brake Upgrades (Baer), 18x9 Cobra R's all around
LOTS of bodymods and House of Kolor Chameleon II Black/Green Paint

99Hawk120

Sorry, rough day and that's just one of my little pet peeves. I didn't mean to go nuts on you guys.

And I actually don't know about the 88 1LEs, so I can't tell you one way or another. It's possible they got a pre-(main)-production version of the 89-92 rear discs.

ebmiller88

iTrader: (7)

Thanks, Apeiron, the pics are on the way. We appreciate it.

Apeiron

Wow, a Stuffit file... do people still use Macs?






[This message has been edited by Apeiron (edited April 30, 2001).]

ANDYZ28

I hope you guyz liked the photos and info. It's the best I can do. At least the bolts will be torqued properly.

[This message has been edited by ANDYZ28 (edited May 01, 2001).]

ebmiller88

iTrader: (7)

Andy, this is probably a lame question, but where do the washers go? I can't really tell from all the info or the pics. I THINK they go on the bolts that hold the plate to the bracket, not the bracket to the spindle. Just askin'..

ANDYZ28

If you will look at the picture of the toruqe wrench. The socket is resting against one of the washers. The other washer is on the identical upper bolt. Can someone redo the photos,so that they will appear without using the little windows with the x in them?

88 350 tpi formula

iTrader: (9)

are the rotors specific to the 1LE or is it true that the caprice use the same?

Apeiron

I think the Caprice uses a different bolt pattern but otherwise they're the same.

ANDYZ28

The Caprice rotors are the same diameter,and offset. But as was stated earlier,they use a larger bolt pattern. But a third gen with 12" rotors at all four wheels, is quite a bit of brake force for the vehicle weight. The book weight on my '82 Z28 is 3297 lbs. I don't know what a Caprice wieghts?

88 350 tpi formula

iTrader: (9)

well I thought they had the same pattern but, was not sure about off set. any ways thanks. I work at a chevrolet cadi olds dealer a thought I could use the frount rotors from a 95 deville on the back of my car doing what the 1le does for the frount so I guess I would have 12" all around. would stop good.

ANDYZ28

OH! 12" rotors all the way around will stop good all right! Mine stop so good that am still having a hard time getting used to how good they are. I can regularly frighten the hell out of passengers,and myself.

N2TRUX

I have been trying to follow the info on the 1LE upgrade. It looks like a great conversion, since almost no vehicle that GM has made has proper stopping power.
I am curious if any of you that have done the conversion have kept up with total cost for parts? Has anyone compared this cost to an aftermarket upgrade kit, like Baer or Brembo?
I have recently found my 84 Z-28 hiding under boxes, and parts in my garage. I plan to improve her performance capability to todays standards....

MikeDwhoROCZImports

iTrader: (1)

Although the rear discs that came on the 89-92 F-body's were not exclusive to the 1LE, they are still referred to as "1lE" brakes.

I swapped a 9 Bolt Borg Warner rear-end off an 89 TA and it came with the PBR Aluminum calipered disc brakes. When I ordered new brake pads from Summit, they asked me if it was the 1LE disc brakes or not. I said "no" because, well, I knew the car wasn't a 1LE. I got my pads in, and they didn't fit. I sent them back, ordered the "1LE" pads, and those worked.

Also, when I questioned Baer about new rotors for my rear end, they consistantly referred to my rear brakes as the "1LE rear disc" setup.

Obviously then, 82-88 rear discs are known as the non 1LE brakes, and the 89-92 are "1LE".

Again, they are called this because the 1LE's were the first cars to be available with these brakes, not because they were 1LE exclusive. Note that not even the 1LE front disc brakes were exclusive to the 1LE...they could also be had on the B4C, but are still referred to as "1LE" brakes.

Another reason they may be referred to as "1LE", is because the calipers were PRB Aluminum, like the 1LE front brakes, rather than Delco.

You are right though, they are not rare.

Also, someone mentioned before that they are 12". They're actually 11.65".

ANDYZ28

As of today, 5/15/01, the following parts are all but gone from GM stocks:

18016034, Plate (Bracket) - 200 Available
10132830, Caliber Carrier, Right - 42 Avail
10132829, Caliber Carrier, Left - 3 Avail

I wasn't joking! So now there are enough parts to do only 3 cars! Somebody is buying this stuff up really fast! I'm glad I've got mine!

Justins86bird

How nicely is rather nicely? Is it a tight fit? I have the 15" xlace rims and cant afford 16" right now, but after what happened today, i realy need to put on the 1le brakes.



------------------
-Justin-
T-Top '86 5.0L LG4 700R4 WS6
T-Top '92 5.0L TBI 700R4
My '86 Firebird Homepage
The F-body Model Kit Pictoral Archive (updated 3/14/01)

There can be only one!!

ANDYZ28

I have just sent you some pictures of my 1LE w/15" wheels. If you can post them here I am certain everyone would be very grateful.

Justins86bird

Here's Andy's pics. Thanks










[This message has been edited by Justins86bird (edited May 20, 2001).]

ANDYZ28

Justins86bird, I have a "fitment template" for the 1LE front brakes. This template is used to mimmick the assembled rotor/caliper assembly. It is inserted behind and into the removed wheel. It will then simulate the clearance of the rotor/caliper from the wheel.
The only problem with this is,that it is not reproducable (photo copy) due to the effects of unintended magnification. I will try to make onother one some how, and possibly mail it to you. That would tell you for certain!
Let me know.

ebmiller88

iTrader: (7)

This is just an opinion question. When I do my brake upgrade, I will also be rebuilding or replacing my rear disc calipers. I have an 88 9 bolt posi.

Here's the question: Should I rebuild the calipers that are presently on it or swap them for the 89-92 PBR style? I've heard about the problems with the earlier style, but what will the swap involve? Has anyone done this? I think I would be more pleased with the uniform look of PBRs at all 4 corners, but cost will be a factor. I will be doing all the brakes, SFCs, panhard rod, LCAs, and front suspension rebuild at the same time so I really don't want to spend where I don't have to. Just asking. Thanks guys...

99Hawk120

I don't remember for sure, but I think a complete '89-'92 brake set ran me about $500... new rotors, calipers, pads, etc...

ebmiller88

iTrader: (7)

Hawk, what rear do you have? Was it before '89? If so, what did you have to change? Some guys on the site say they don't bolt up the same on the '88 rears. What is right? I'd be real eager to get the parts if it's just a pull and switch thing. Thanks.

99Hawk120

I had a '86 or so 10-bolt with the '82-'88 brakes. I converted to the newer brakes when installing my 9" Ford rear (the backing plates on the older brakes are difficult to work with because they are so thin).

That said, I noticed no difference in the bolt pattern b/t the '92 backing plates and the '86 ones. My '92 backing plates have been kind of permanently modified to fit the 9" (center hole overbored and a drum brake bolt pattern drilled), so I can't take them back off and check.

The only thing I can think of that would be an issue to putting the newer brakes on an older 10-bolt would be having to redo all the hard lines. Both brakes are trailing edge (so there IS a left and right caliper), so the right hand side routing probably won't work), and the left side actually DOES have a rubber hose with the newer calipers so the left side won't work.

New rubber hoses, new hard lines... can't think of anything else that would be an issue.

FYI, one of the emergency brake brackets was discontinued however, and it took me several tries to get the right e-brake cables (used the ones from an '89 TTA).


------------------
"Beware he who would deny you access to information, for in his heart, he dreams himself your master"

'84 Black Camaro ZZ4 M5 (V-6 in a former life) -- street beast
'91 Medium Blue Metallic Z28 A4 (UB-HSTRY's old ride) -- currently broken
'99 Navy Blue Metallic Firehawk #120 M6 (99.44% stock) -- daily driver

88 350 tpi formula

iTrader: (9)

I plan on doing this swap as well, I recently installed a 10 bolt rear disc in my formula and after doing so I was able to get ahold of the 88 and up pbr calipers rotors and backing plates. I am installing the 1-LE in frount and plan on doing this at the same time. what you will need is at least a new drivers side steal line and since you are down there do the pass side as well. both rubber hoses, and p-brake cables these are really differant than the drum and castiron calipers.

Tad

It will work. I have 89 and new rear disc brakes that I install on my rearend out of 87 T/A. The backing plates bolt right up. As for the hard lines the p/s line will work fine, but you will need a new flex line because it is short then the old one. The drivers side hard line will have to be modified to work. If I can get some Picture I will post them.

ANDYZ28

Tad, do you have aluminum calipers (PBR) on your rear axle? Or the steel calipers?

Tad

They are the PBR aluminum. I got them from T/A creations. The backing plates I got from gmpartsdirect.com.

[This message has been edited by Tad (edited May 28, 2001).]

ANDYZ28

Tad, If you still have the reciept. Please post the (all) part #s and prices. For the benifit of the other members. Thanx

Tad

AndyZ28 I got most of my information for this web site http://www.isthq.com/~dan/1LEbrake.html#1LErear
Has all the part numbers you need. I would try to find the calbirs used from some where. because they are alot of little parts that are attached to them for the e-brake. plus when I price the calibers from autozone they were $140.00 each. Call T/A creations the can tell you what years and cars used them.as for brake lines I got some from www.finelinesinc.com prebent.They were $29.00 a pair. AS for the flex lines I used Earls braided lines I got them from summit.If I think of any thing else I will post it.