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Old 01-03-2010, 08:59 PM
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lt1/ls1

I was gonna to possibly drop by a junkyard that has a few camaros and i was curious... What did 4th gens come with... both LS1 and LT1? If so how can i tell the difference? If i find one with LS1 id take the parts but i dont wanna assume they're LS1 and it ends up that they arent..... The other thing is, what exactly do i need to get parts wise? Just backing plates and callipers/rotors? Forgot to mention its for the rear.
Old 01-04-2010, 03:56 PM
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Re: lt1/ls1

rear axle? lt1 brakes have the calipers on opposite sides of the axle, one side is on the front, other side in on the back side of the rotor. follow? ls1 discs are on the front of the rotor. ASAIK, the lt1 discs have a spring and weight parking brake, whereas the ls1 has an internal drum parking brake inside the rotor. Much cleaner setup.

grab everything you can. Rotors, if they are good, calipers, abutments, all bolts, backing plates, need to pull the axles to get them off, parking brake cables, the entire parking brake assemlby. you want the cable that attaches to the e-brake handle in the car and goes intot he tunnel, there is a puller plate thing in the tunnel you want as well as the cables to the rear. Or you have to buy custom cables from ebmiller. Grab the flex lines for the calipers if they look good, might want to get new ones anyway. and grab the e-brake cable brackets that are bolted on with the LCS's that hold the flex lines and the parking brake cables.
Old 01-05-2010, 02:57 PM
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Re: lt1/ls1

lt1 brakes have the calipers on opposite sides of the axle, one side is on the front, other side in on the back side of the rotor.
Not saying your wrong, but is it at all possible for the LT1 calipers to be mounted on the back... on both sides? Stopped by the JY to check out what they had and i looked at a 97, both were mounted on back... The 2000 on the other hand looked semi descent, asked what they want... He said that calipers,all bolts, backing plates, e-brake cable would be like $85, n that itd probably be more worth it just to get the whole rear end, which would be around $180.
Old 01-05-2010, 03:07 PM
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Re: lt1/ls1

Get the rear end out of the 2000, it'll have the 12" rotors and all the good stuff. I actually got a rear end out of a 2000 to work e-brake wise with the 2000s factory e-brake cables and balancer off the handle, so where everyone else has to spend a fortune on cables, i got mine free, and readily available. Besides better brakes, the rear end is newer, probably less miles, and possibly better gear ratio than what you have. I have '88 Formula wheels on mine, and they fit perfectly in the wheel wells with air shocks. Without air shocks they want to rub the 245/50 tires i got.
Old 01-05-2010, 08:51 PM
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Re: lt1/ls1

Originally Posted by weaz4200
Not saying your wrong, but is it at all possible for the LT1 calipers to be mounted on the back... on both sides? Stopped by the JY to check out what they had and i looked at a 97, both were mounted on back... The 2000 on the other hand looked semi descent, asked what they want... He said that calipers,all bolts, backing plates, e-brake cable would be like $85, n that itd probably be more worth it just to get the whole rear end, which would be around $180.
pretty sure they are opposite on all of them, but i could be wrong, its happened before.

if you have the choice, defiantly get the ls1 brakes, they are better and cleaner looking
Old 01-05-2010, 09:27 PM
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Re: lt1/ls1

if you have the choice, defiantly get the ls1 brakes, they are better and cleaner looking[
I definitely am. Just trying to see if its better to get a kit or used... Cause the rotors were kinda rusty (not slotted/drilled), just typical wear and tear... Id think that if i was to get them it'd probably be a good idea to get a rebuild kit for the calipers and new lines.. I have been looking at bigbrakeupgrade's Complete LS1 Conversion Kit, but thats just for the front.... I did send them an email though to see about a rear kit and what they'd charge.... I do have a few questions.... The LS1's are 2 piston front and 1 piston rear...right? So i was curious, is it better for the fronts to have more pistons than the rear, or is it okay to have them all be the same? Which leads me to my next question.... Can the front calipers be used on the rear? I ask because the front have more area on the caliper to be able to do this... Look at pic..

Since the rear calipers are slightly different i dont see being able to put "CAMARO" on them, not enough room.... Thats why i ask if fronts can interchange with rear..... or would some customizing/fab be needed?
Old 01-06-2010, 06:50 AM
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Re: lt1/ls1

The Delco-Moraine calipers, 82-88, are on opposing sides. The 89-97 PBRs are on the back side.

https://www.thirdgen.org/forums/atta...89-rearcar.jpg

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Last edited by JamesC; 01-06-2010 at 06:53 AM.
Old 01-06-2010, 12:54 PM
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Re: lt1/ls1

The Delco-Moraine calipers, 82-88, are on opposing sides. The 89-97 PBRs are on the back side
Okay. Gotcha. So what all did each year come with (aside from drums)?

82-88 Delco-Moraine calipers
89-92 PBRs
93-97 PBRs/LT1
98-02 LS1

Sound about right, or are there more?

Heres a side by side with pics i took from my phone.. 2000 on left and 97 on right

ls1DM.jpg?t=1262803678
Old 01-06-2010, 01:05 PM
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Re: lt1/ls1

Originally Posted by weaz4200
Okay. Gotcha. So what all did each year come with (aside from drums)?

82-88 Delco-Moraine calipers
89-92 PBRs
93-97 PBRs/LT1
98-02 LS1

Sound about right...
Yes. For the record, note that the 89-97 PBR's are nearly identical (the LT1 version has a vibration dampener and the fins are a bit different--compare your pic with mine).

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Last edited by JamesC; 01-06-2010 at 01:55 PM.
Old 01-06-2010, 01:16 PM
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Re: lt1/ls1

So my pic is a PBR and your was/is an LT1....Thanks, maybe you could answer one of my previous questions. Its post #6.....

Last edited by weaz4200; 01-06-2010 at 01:23 PM. Reason: add info
Old 01-06-2010, 01:43 PM
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Re: lt1/ls1

Originally Posted by weaz4200
So my pic is a PBR and your was/is an LT1....Thanks, maybe you could answer one of my previous questions. Its post #6.....
My pic shows 89-92 PBR's, yours the 93-97 PBR from an LT1. I'm not familiar with the LS1 set-up so I can't be of any real help, though I doubt that the calipers would be interchangeable. Generally, the front brakes, since they're responsible for some 70 percent of braking, have larger rotors along with multiple-piston calipers.

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Old 01-06-2010, 02:06 PM
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Re: lt1/ls1

So what exactly is the vibration dampener? Not asking what it does but part wise (what it looks like)? Is it part of the caliper bracket/abutment or whatever the correct name is, or part of the caliper itself? Id like the rotors same size all around. I dont really need multi-piston calipers on the rear, i'd just like the caliper to have the room to paint 'CAMARO" on them, like the pic of the blue caliper i posted.
Old 01-06-2010, 02:19 PM
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Re: lt1/ls1

Originally Posted by weaz4200
So what exactly is the vibration dampener? Not asking what it does but part wise (what it looks like)? Is it part of the caliper bracket/abutment or whatever the correct name is, or part of the caliper itself?
It's a rubber donut-looking piece bolted to the e-brake assembly. Pic (90):

http://shbox.com/1/rr_disc_brake_assy.jpg

BTW, many members simply discard the piece as unnecessary.

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Old 01-06-2010, 02:26 PM
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Re: lt1/ls1

It's a rubber donut-looking piece bolted to the e-brake assembly.
I see, i thought it was something totally different. I searched for a pic and couldnt find it, guess your better at searching than me...
BTW, many members simply discard the piece as unnecessary.
How necessary is it, would it make that much of a difference? Thanks for the pics and help, i appreciate it..
Old 01-06-2010, 02:32 PM
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Re: lt1/ls1

Originally Posted by weaz4200
How necessary is it, would it make that much of a difference?
The 89-92 PBR version wasn't equipped with the dampener, and I've experienced no problems without it, so why the dampener was incorporated in the first place is a mystery to me. I'd chuck it if it caused difficulties.

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Last edited by JamesC; 01-07-2010 at 06:20 AM.
Old 01-06-2010, 08:24 PM
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Re: lt1/ls1

Ls1s have PBR calipers on them too dont they, cuz my ls1 brakes say PBR on the caliper. I know they are ls1 brakes cuz they are monted in the front, have ls1 style ebrake and the rear end had the TCS ring in the rear end.
Old 01-06-2010, 08:44 PM
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Re: lt1/ls1

Originally Posted by supermariobros
Ls1s have PBR calipers on them too dont they, cuz my ls1 brakes say PBR on the caliper. I know they are ls1 brakes cuz they are monted in the front, have ls1 style ebrake and the rear end had the TCS ring in the rear end.
89-92 are the so-called 1LE PBR's (though all disc rears were equipped with them)
93-97 are the so-called LT1 PBR's
98+ are the so-called LS1 PBR's

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Last edited by JamesC; 01-06-2010 at 08:48 PM.
Old 01-06-2010, 08:44 PM
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Re: lt1/ls1

Do LS1 rear brakes fit inside 15" wheels?
Old 01-19-2010, 11:42 PM
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Re: lt1/ls1

Need 2 questions answered por favor....

The first... As far as the LS1 backing plates goes, how often if at all do they need to be rebuilt? Also does anybody know if they have rebuild kits for the plates? (Couldn't find any kits)

The second... As far as braking goes would it be fine if I was to use a set of front LS1 calipers on the rear as well? I'm more so asking if it would be ideal to use the basic two piston front and one piston rear or my way. (Basically what I am asking, would having two piston calipers all the way around the car bring up any issues braking wise?)

That's all for now, thanks.
Old 01-20-2010, 11:28 AM
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Re: lt1/ls1

Originally Posted by Firebat
Do LS1 rear brakes fit inside 15" wheels?
Not on the rears! Don't know about fronts, but I'd imagine not.

Also NOTE: Most 3rd gen factory spares WILL NOT fit over the LS1 brakes either - even if you have 16" wheels from factory, chances are the spare will not fit over the LS1 brakes as the factory still usually used a standard 15" donut - so anyone doing the LS1 brake swap or swapping in a LS1 rear end needs to get a larger donut! I have no idea about the earlier 'spare with a can of air' setups.
Old 01-22-2010, 10:30 PM
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Re: lt1/ls1

Couple of questions.....

1) Whats the difference between say getting a used oem PBR caliper vs a reman one like from the auto parts stores?

2) Anyone have any recent experience with Big Brake upgrade .com?

3) Why is it not required to use axle retainer/plate when installing LS1's on a Moser 9", does the backing plate act as a retainer?

4) Any one have a write up or know where i can get instructions for installing the LS1's on the 9"... (write-ups ive seen are vague)(9" is spec'd for ls1's from moser).
Old 01-23-2010, 06:58 AM
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Re: lt1/ls1

Originally Posted by weaz4200
Whats the difference between say getting a used oem PBR caliper vs a reman one like from the auto parts stores?
Nothing really, though if the PBR is rebuilt, the free travel will require adjustment, which would no doubt be the case with the remain. BTW, with remains, you may get a 1LE PBR or an LT1 or both. They look slightly different where the fins are concerned.

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Old 01-23-2010, 01:24 PM
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Re: lt1/ls1

Can someone please answer my 3rd and 4th question. I dont get why i dont need a axle retainer plates for ls1 brakes (rear).
Old 01-23-2010, 03:42 PM
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Re: lt1/ls1

Originally Posted by weaz4200
Couple of questions.....

1) Whats the difference between say getting a used oem PBR caliper vs a reman one like from the auto parts stores?

2) Anyone have any recent experience with Big Brake upgrade .com?

3) Why is it not required to use axle retainer/plate when installing LS1's on a Moser 9", does the backing plate act as a retainer?

4) Any one have a write up or know where i can get instructions for installing the LS1's on the 9"... (write-ups ive seen are vague)(9" is spec'd for ls1's from moser).

1. remanned ones are rebuilt, used are used, is that hard to get?

2. never dealt with them, heard good and bad

3. yes the backing plate acts ars the retainer

4. caliper goes on the front, install the plate on the axle before you press on the bearings. insert axle, bolt to axle flange with t-bolts, should be supplied with rear. pretty straight forward. If you remove the brake backing plates from a car at the junkyard or where ever, just look at how they are attached. they attach the same way on the 9" with the exception that you have to install them on the axles and press a bearing on.
Old 03-19-2010, 09:47 PM
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Re: lt1/ls1

Was wondering if someone can tell me the correct name for this part... (PIC FOR REFERENCE)...



The little cylinder that engages the brake shoe... What would that be called... wheel cylinder? Now for the pic of the backside that shows the lever, is that part of the cylinder or are those 2 different parts? N what would that be called? Thanks.
Old 03-25-2010, 11:41 PM
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Re: lt1/ls1

Is it alright to give a quick sandblast to the caliper bore, or is that a no no? I figure i could go back and use a real soft wire wheel (real soft) and just polish the bore back to the original shiny surface without removing material.. Would like to hear opinions...Thanks.
Old 03-28-2010, 04:46 AM
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Re: lt1/ls1

Anyone? Come on, someones gotta know what these parts are called.... Heres a better picture... I need the names for the following numbers that corespond to the pic...
# 46
# 48
# 50
# 51
# 52
# 53
# 54
# 55

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