How to Install a 4th Gen Booster on a 1982-1992 Camaro/Firebird

[@marcuslimbaugh4592]

Wish we were neighbors. Great work

[@ItzThatDude123]

😂

[@kkr7540]

I was thinking of leaving the column alone and loosening the pedal pivot bolt a bit. Then I could move that brake pedal brace out of the way.

[@keilylmm6377]

Great tutorial my friend. I'm going to be replacing my power brake booster in my 94 trans am. It works fine but I'm building a show car. so my old brake booster is kinda rough looking. It's got some surface rust under the the 2 bolts and inside by the round rubber gasket inside..

[@mikeb620]

Going to try this Saturday. Ordering everything tomorrow.

[@kemicalx17]

Love the videos, keep them coming!

[@K_CaponeVlogz]

What fittings did you use. Cause my 3rd gen fittings don’t work with the 4gen master cylinder

[@kkr7540]

750. My friend suggested maybe the vacuum canister/system that runs the heater controls.

[@3rdGenGuy]

those vacuum chambers are super cheap and easy to replace. it's looks like an "alien spaceship" on the drivers side

[@eddiedominguez7055]

What year of power booster do you recommend to do this same operation that you’re doing?

[@3rdGenGuy]

4th gen. so 98-02 use both the 4th gen master and booster together.

[@MrFishy420]

Where did you get the brake booster from and what's the part#?

[@3rdGenGuy]

any parts store. ask for a booster from a 1998-2002 Camaro SS.(5.7L)

[@stevedriver1476]

does this give better pedal pressure,, what iff the 82 had drum rear

[@3rdGenGuy]

it's a better setup vs stock, but it's not compatible with stock 3rd gen front brakes.

[@thebeardedlifestyle5563]

Can I do any booster/master from a 4th gen like v6 or v8 does it matter ? I’m looking at some from local u-pull-it’s and wonder if they all work

[@marcuslimbaugh4592]

Read comment under yours

[@kkr7540]

Ok thanks. Does that sound like the issue or do you think there’s something else I need to check.

[@3rdGenGuy]

sure, there are more things to check, but those canisters are like $5 and wear out. easy way to check if that's your problem.

[@johndoe9824]

Is there anymore modifications for the 4th gen master and booster on a 82 camaro?

[@3rdGenGuy]

it's a direct bolt in for the most part. early cars 82-84 might be a bit different. get one from a local store, wrap it up in plastic and test fit it. if it doesn't, return it

[@johndoe9824]

@@3rdGenGuy thank you for the idea

[@brianritter4323]

Do the 3rd gen brake lines mount right into the 4th gen master cylinder?

[@3rdGenGuy]

the later 1987+ Metric lines do yes.

[@eddiedominguez7055]

What would I need to swap over to my 82 Z28 any 4 gen m/c and any 4 gen booster or any specific year?

[@The1972Cutlass]

Hey my third Gen Camaro stalls sometimes when my foot is on the brake or when I'm braking to a stop, I hear a loud swooshing noise every time I press the brake is it possible it's the brake booster

[@3rdGenGuy]

pretty much all 80-90s GM boosters will make that Swooshing" noise.

[@The1972Cutlass]

@@3rdGenGuy would that cause stalling tho? It's intermittent last time it did it I was going about 30mph and mashing the brakes the car cut off and rolled to a stop

[@3rdGenGuy]

idle air control valve could be dirty or clogged. hard to say really. cars are often mysteries.

[@The1972Cutlass]

@@3rdGenGuy o ok thx

[@felipeiturra1459]

Hi buddy, hey I have this same setup follow your video, but brakes are not very powerful when I push hard, do not lock the wheels for example and reduce speed slowly and not hard like a emergency brake, any similar issues when you did ?? Thx

[@3rdGenGuy]

did you Bench bleed the master cyl?

[@felipeiturra1459]

@@3rdGenGuy yes I did, driving normal is just fine, is not enough power on hard stops, and when the car is not moving I push the brake and I can reach the end on the travel

[@3rdGenGuy]

sounds like the master is bad. lotta bad 4th gen brake masters lately. I fixed one on a 87 LSA swapped Camaro recently . same issue.

[@felipeiturra1459]

Thanks for the answers, I just ordered a new master, hope and I fix that easy lol

[@JamesBond-pf6gv]

Do you have to remove the lower dash out the way to get the column bracket out the way?

[@3rdGenGuy]

ya, so my under dash pad was not installed at the time of this video. remove it and get more room to work in

[@jaywalker8954]

How good is it versus the 3rd gen??

[@gogglestheydonothing]

did you watch the video?

[@kkr7540]

Any other parts that need to be messed with/removed underneath the column or do you just loosen those nuts and let it droop down a little?

[@3rdGenGuy]

just remove the 4 booster nuts. it's a tight squeeze, but that's it

[@kkr7540]

Ok so my car doesn’t have those circular canisters. I have a vacuum canister bolted to the firewall in between the brake booster and washer pump and it’s not connected so that shouldn’t be my issue as it’s not receiving any vacuum from the engine. What other things can I check? Thanks.

[@3rdGenGuy]

hard to say man. so many things could be at work here.

[@damianwillis6209]

I did the swap and my Wilwood brakes keep locking up over a short period. My question is does the 4th Gen have the same pushrod length because when I loosen the nuts to the Master cylinder they release?

[@3rdGenGuy]

so there has been a string of people with your problem. SOMETHING changed recently with the parts. it's been 15+ years of 4th gen booster/master setups working fine then in 2019+ suddenly it's an issue.

[@kirkdecker6228]

Where did you buy the booster from? Thanks again for another great vid!

[@3rdGenGuy]

any parts store. ask for a booster from a 1998-2002 Camaro SS.(5.7L)

[@kirkdecker6228]

@@3rdGenGuy Thanks for answering and I really like all your vids. I have an 89 Trans Am GTA. Your vids have helped me tremendously in my repairs. Again great work. Thanks!

[@Meenz28]

I followed your 4th gen master cylinder / wilwood prop valve video to a T. Did everything exactly as you did. Still not happy with how squishy the brake pedal feels. They work, but just doesn't "feel" great. Do you thing doing this 4th gen booster will help?

[@3rdGenGuy]

the 4th gen booster+ 4th gen master cly is way better. pedal travel is like 1/2 compared to before. pretty happy with it

[@Meenz28]

@@3rdGenGuy Good to know. Looks like I'm going to follow another of your vids into my car. Thank you.

[@Meenz28]

@@3rdGenGuy Finished this just last night. OMG does the brakes feel like a world of difference! They feel like they "should" now. I recommend this upgrade to everyone with a third gen now. Couple side notes, the 10mm nuts for the master cylinder will swap over from the 3rd gen however the 4 bolts from the firewall are different from the 3rd gen so those you will need to replace the nuts there. Just note these nuts are 8M-1.25 size, not 8M-1.00... ask me how I know this. LOL

[@johndoe-zd9lb]

Good too know

[@dankomartek2145]

Can the 4th Gen Booster and Master be used with 4 wheel disk brake systems?

[@3rdGenGuy]

ya, but be wary. some people have had issues latly.

[@dankomartek2145]

@@3rdGenGuy what kind of issues. I want to do a 4 wheel disc conversion on my 90 firebird. Gonna go with a C5 setup front and rear. Was wondering which route to go with the master, booster n proportioning valve? Saw this and was hoping this would work for me. Nit going Brembo Baer or anything crazy like that

[@Boosted370]

Hey there when you installed that 4th gen master cylinder did the fittings on your 3rd gen brake lines work?? Or did you need to use an adapter of some sort??

[@3rdGenGuy]

if you have a metric 87-92 car, the fittings are identical from the 3rd to 4th gen master.

[@marcuslimbaugh4592]

1983 here anyone know what I need to make it work

[@carringtononsite]

I’m running into the same problem so what size fitting did you use ?

[@chrisbentley3468]

Is it ok to use the third gen proportioning valve with it?

[@3rdGenGuy]

ya, that's fine. the factory prop valve just gives up a bit of rear brake bite.

[@chrisbentley3468]

@@3rdGenGuy ok, thank you.. I currently have a drum brake prop while having discs so I wasn't sure if I had to go fourth gen on the prop or not

[@johndoe-zd9lb]

did you have a problem with your aftermarket caster camber plate pushing into the side of your master reservoir and tilting it? i am in the process of this mod right now and my umi plate is doing just that....to the point i'm afraid the reservoir will leak from the seals connecting it to the master bore. the only things i can think to do to fix this would be to shim the booster with washers on the bottom two studs (between booster and firewall) to get the master to angle up the 1/4 inch i need so the umi plates tucks underneath it. or possibly cut a 45* angle out of the top edge of the umi tower closest to the reservoir and do some re-welding.....thoughts? what year 4th gen booster, and master did you use??

[@3rdGenGuy]

yes, the Founders or UMI strut mounts tend to hit the master cly at high camber settings. there's no way around it until you go manual brakes. 4th gen booster/master just tell the parts store guy 2002 camaro SS.

[@mxlman26]

Is the samenif I use one from a truck?, will it fit.... Cause no many 4th gens left here

[@3rdGenGuy]

different cars have different sized master Cly bores and angles. the 4th gen master is the only one i know of that's a direct fit.

[@mikeb620]

I know you said after 87 it's metric direct fit, but will I still need those new 8mm and 10mm locking nuts?

[@mikeb620]

I have a 1988 GTA lol

[@kkr7540]

Ok so loosen the column nuts but don’t remove the column? Just create some space. It’s definitely a tight squeeze.

[@J2A61]

What year parts did you use?

[@johndoe-zd9lb]

if you have a metric car, i know you need the 98 ls1 master in order for your factory brake lines coming off the proportioning valve too be able to screw into master without having to change fittings. i made the mistake of getting 93 parts at first and the lines wouldn't connect in front

[@J2A61]

@@johndoe-zd9lbthanks I’m going to do this swap this soon

[@____1561]

I got the booster and master cylinder already from autozone but disappointed it came with no hardware. May I ask where you sourced your locking nuts from, and the specs?

[@3rdGenGuy]

local hardware store had the correct lock nuts. I don't remember what thread pitch they were.

[@mattrodriguez7070]

Can you use the 4th Gen booster and Master if your running front disk/rear drums? I have a 3rd Gen Camaro drag/street car no need for 4 wheel disk brakes but would like a little more responsive braking. Thanks

[@3rdGenGuy]

you can use them on a Disk/Drum car. this master doesn't play nice with the factory "low drag" calipers though. they work best with an aftermarket front brake kit

[@Dirtydeesdigital]

@@3rdGenGuy i did this and im having brakes draging... any fix for this?

[@3rdGenGuy]

@@Dirtydeesdigital you aren't alone. I've seen a few guys recently with dragging brakes. the 1st thing to check is if the brake pedal is returning all the way forward to the driver. You can see this at 2:30 in the video. i had to pull back my brake light switch about 1/2in

[@textor33]

What r the adapters u used on the lines

[@3rdGenGuy]

the later 1987-1992 cars have the exact same lines as the 4th gen master. i have a video that shows every adapter and line kzbin.info/www/bejne/iIO5Z5Zup6eXjqM

[@textor33]

I got mine installed. Buy sadly breaks are worse now then before lol . Do I need to do anything else.

[@3rdGenGuy]

@@textor33 how many times have you bleed the brakes? it took me 3 bleeds to get 100% of the air out of the system.

[@carringtononsite]

@@3rdGenGuy do you have a part number on the 4th Gen Lines

[@3rdGenGuy]

@@carringtononsite what lines?

[@dart760]

You have a video doing the master?

[@3rdGenGuy]

yep, it's on my channel

[@dart760]

@@3rdGenGuy thank you

[@torymblue2000]

Odd you had no problem with the bushing/gasket of the 4th gen fitting into the 3rd gen hole, the rubber on the 4th gen is a decent sized wider.

[@3rdGenGuy]

everything bolted in no issue.

[@torymblue2000]

@@3rdGenGuy Did you actually look at how the seal and the firewall met? Bolt up sure, but I doubt it's a water proof connection, as the 3rd gen was, I'm only citing, because I've done it as well and the boot for the 3rd and 4th gens are different, the 4th gen is larger.

[@3rdGenGuy]

@@torymblue2000 no leaks on my car. and I race in the rain a lot. even in downpours or 1in standing water. if you are worried, something could be modified to fit as a gasket.

[@ariyanadumon4549]

That's an awesome thing to know man. Did you just order one from O'Reilly?

[@3rdGenGuy]

ya, it's just a rebuilt AcDelco unit since you can't buy them new anymore.

[@teabag402]

​@@3rdGenGuy I keep seeing videos about "adjusting the preload on the booster pin to the master cylinder" but I don't see anyone on 3rd or 4tg gen Camaros doing so. Is it just not needed on these? Appreciate your help

[@brandonoliver9110]

So I did this swap and my proportion valve line nuts are bigger than the holes in the 4th gen master cyl do you know of an adapter or do I have to re make the lines

[@3rdGenGuy]

depends, early 87 and older cars are standard. the 4th gen booster is metric. both holes on the 4th gen booster are different threads and sizes as well.

[@brandonoliver9110]

Mine is an 83 and i didn't notice the difference in whole size I'm going to take both masters to the parts store today and see what I can come up with

[@3rdGenGuy]

@@brandonoliver9110 an 82 is standard, so it will be a Double flair. the 4th gen is a metric Bubble flair listed in the picture at the start of the video. so you need a Male bubble flair to female double flair adapter.

[@brandonoliver9110]

Would you happen to know the sizes or maybe a part number I've been all over the place looking for adapters and custom line shops to try and get the lines to match up from the proportion valve to the master and no luck unless I want to send the lines off

[@3rdGenGuy]

@@brandonoliver9110 this link is to a thread that has a pic that shows every year of master Cly and what bores and threads they have. it's on Page 1 www.thirdgen.org/forums/brakes/719070-4th-gen-master-cylinder.html

[@kolourblind3124]

Why is the third gen check used as opposed to the 4th? I’m wondering because I swapped in 4th gen brakes front and rear and not sure which I should use. Great videos! Favorite third gen channel by far.

[@3rdGenGuy]

the vacuum hose diameter is different 3rd to 4th.

[@kolourblind3124]

@@3rdGenGuy I purchased your brake booster support brace today off eBay. Thanks for the quick shipping! Stoked to get this piece

[@3rdGenGuy]

thx for the support. already shipped.

[@TheComputerArmory]

Hey man, can i use my 3rd gen master with a 4th gen booster? My master is new and my booster just went out last week. I have watched both your videos and seen all questions and answers just not the one im looking for.

[@3rdGenGuy]

you can, however the 3rd gen booster Pin is 3/8in shorter. so you have more pedal travel as a result. i suggest doing both the 4th gen master and booster at 1 time.

[@ITzRuff]

thanks it really helped

[@kkr7540]

Hey man, so when I disconnect the check valve from the brake booster and plug that line, leaving the booster disconnected, that rpm surge symptom I’m having goes away. Seems like it’s something with that check valve. I’ve tried blowing air through the check valve from the booster side to the manifold and I do have air coming through, is that normal?

[@3rdGenGuy]

air should only flow 1 way through those check valves. they are about $20 new

[@3rdGenGuy]

Just a FYI Recently many 3rd gen guys who installed the 4th gen Booster+Master have had issues with brake calipers dragging. I'm not sure what the issue is. The 4th gen combo has been used with success for 15+ years with hundreds of 3rd gen builds. Suddenly multiple people are having issues So be diligent about parts, I don't know if the manufacturers changed something like pin depths on newer 4th gen masters.

[@kevinkelly5257]

I am plagued by this issue. I’m guessing the pushrod length on the booster is slightly too long and caused the master cylinder to begin holding pressure to my rear brakes, causing drag. It ultimately killed the master cylinder which leaked and killed the booster. Is there adjustment available on the booster pushrod length where the master bolts up? It doesn’t appear adjustable.

[@3rdGenGuy]

@@kevinkelly5257 it's not adjustable. but it's so weird that ppl are having issues out of the blue. it seems like maybe the part makers changed a pin length or something. kinda like the AC delco steering idler arm being changed recently and it's now wrong for 3rd gens.

[@kevinkelly5257]

@@3rdGenGuy I’m using the Cardone reman brake booster, PN 5471287. I see there is like one other option, the Centric PN 16080549 that is a bit more expensive, but I’m thinking it’s probably the exact same thing. I would hate to abandon this upgrade path, but right now after driving for just a few miles, the car can’t be driven because of the dragging issues.

[@3rdGenGuy]

@@kevinkelly5257 that sucks, but idk what's happening here.

[@SmackdownCH]

@@3rdGenGuy could it be that it makes a difference if you install that black bracket between master and booster which holds the prop valve in place? I mean the distance between booster and master can vary if you install the bracket or not.

[@davetherug4439]

Will a 4th gen 3.8l work do you know?

[@3rdGenGuy]

I don't know. all i know is the 98-02 V8 master cly works.

[@Alex-pj8eu]

Yes ANY 98-02 camaro or firebird master cylinder will work even if its a v6 car the calipers and master cylinder from both v8 and v6 cars are IDENTICAL..

[@TheGramee]

Awesome...thnx

[@RonSavage01]

What's the purpose of this?

[@kkr7540]

Question for you, I have an rpm surge of about 200 rpm’s when I depress the brakes, then returns to normal, then same surge when releasing the brakes, then back to normal. I replaced the brake booster, booster check valve, booster check filter and all rubber hoses connecting those items and still same surge. Any ideas?? I honestly don’t remember if it did this before I started paying attention to it last week while replacing items just because they looked old.

[@3rdGenGuy]

what's the idle engine RPM?

[@GreatestHITS26]

There’s literally no videos of 93-02 firebird on this brake booster.... ig I’ll figure it out myself

[@3rdGenGuy]

it's gonna install the same way. but the 4th gen booster and master is kinda buried

[@GreatestHITS26]

@@3rdGenGuy It sure is. I just got it installed a few hours ago, it stops on a dime now!

[@goodafternoonworld4456]

The one on the top left above the brake pedal was a bich to take out, I shit you not I took 2 hours on that lug nut,

[@3rdGenGuy]

at 0:47 it shows the weird wrench combo i used. NOT easy to get to

[@goodafternoonworld4456]

@@3rdGenGuy 😂, not me, I tried to use that one but I think that the one that I had was too fat so it wouldn't fit past the brake. I had to get an adapter to make it into a corner

[@goodafternoonworld4456]

@@3rdGenGuy where u working on a camero ?

[@3rdGenGuy]

@@goodafternoonworld4456 yes, a 92 RS. as far as i'm aware,the pedal assembly under the dash is the same Camaro VS firebird.

[@anthonycr2502]

Really? So this fixes that shitty mushy feeling I feel in the brakes? I have no confidence in them lol. I even put new brake pads all around and remachined the rotors and they still felts mushy and like shit lol. If this is the upgrade to do that fixes it I’ll go buy the parts right now! So any year 4th gen Camaro for the parts? And what nuts do I get?

[@3rdGenGuy]

if you have stock brakes, that's usually the issue. the 4th gen master doesn't work well with factory calipers.

[@Smasher-Devourer]

Apparently the 93-97 Master cylinder has different threads for the brake lines. One line fits, the other is too big. So they changed the threads 93-97, and then changed them back to the 3rd gen thread patterns from 98-02. Thanks GM. owning a GM vehicle reminds me every day of why I'm a Ford guy.

[@ph3n1x77]

Hey I'm from Canada and I'm finding it hard to find a 4th gen booster, do you know of any websites that have them for sale and would ship to me?

[@3rdGenGuy]

really any website that ships to Leaf-land would work. idk who does ship there though. i'd try Rock Auto or similar.

[@right6665]

Was nobody curious about the check valves?

[@3rdGenGuy]

pretty straight forward. 3rd gen ones has a 3/8 line, 4th gen has a larger line. just swap valves like in the video and bam, it works.

[@right6665]

Thank you sir

[@billwestfall7884]

Another guy on 3rd gen org posted a picture of the master/booster combo sitting pretty high and possibly interfering with the hood. I can't tell from the video but do you have any clearance issues?

[@3rdGenGuy]

I think that's a firebird issue since the hood lines are petty low on those.