redsclt1

Hi,
I am on my 4th plastic brake booster for my 94 vette and was wondering if the metal booster for an 84 will work on my 94 or if they sell aftermarket metal boosters? Thanks

Big Darrell

I just ordered a 84 Metal Brake Booster for my 94 Corvette and will be installing it when it gets here. Hopefully it will fit I am tired of plastic ones going bad also. I think the only difference is the center rod in the booster has to be adjust outward closer to where it mates up to the back of the Master Cylinder or you will have a 1/4" gap there and play in your brake pedal. Compare it to your original to get the correct clearance to the center rod it just unscrews outward. Also metal boosters are cheaper which is a bonus. That plastic Cardone rebuild Booster is junk don't buy that ever lasts only 2-4 years if that. Last one I purchased recently from Rockauto was rebuild incorrect the Master Cylinder mounting posts on the booster were tapped and installed on an angle not straight and could not install the Master Cylinder would not fit. Also you never want to return anything to Rockauto the forms and questions they put you threw is a joke big hassel I stopped buying from them. Summit racing or Jegs are really good suppliers for C4's no problems ever. Hopefully my post will help other c4 owners.

Recent Update just got my refund from Rockauto on defective brake booster took 10 days. Brutal return policy with them. Great for buying but not for returning no way to call them either no customer service at all.

armysnipe

Big Darrell

Thanks for your post and information.Currently the only available Metal Brake Booster is a Delco rebuild for a 84 Corvette but should fit in my 94, will be installing it in a week or 2 and will post how it fit and how it functioned.My 94 Master Cylinder bolts up to it with no issues everything lines up. Rockauto currently only sells all plastic brake boosters for C4's. I am still waiting for my refund of $156.00 for the Junk Cardone Plastic rebuilt Brake Booster that I sent back from them 10 days ago. The mounting posts were not straight and could not mount it correctly. I used to buy everything from Rockauto until this happened. I forgot to mention I purchased my current 84 Metal Brake Booster off Ebay from AC Delco Warehouce for $115.08 with no core charge and free shipping best deal I could find anywhere. Arrived silver will be painting it black with a good high temp engine paint VHT is always good to use. Plastic brake boosters should not have been installed on any C4's ever what were they thinking.

Hoser

I got one from A Zone...it failed in about 4 months.Made by some company in Calf or out west someplace..talked to their customer service guys a couple of times.

Went with Delco OE replacement from Rock Auto...on my 2nd one of those.
Dont think metal is the silver bullet. Maybe...?

This has been a problem for a year now in my 94.

Big Darrell

Also same issue in my 94 to. That is why I will be installing a 84 Metal Booster to see if it fits and operates correctly. Will post results next week. The plastic cases on the Cardones fail overtime because of the heat from your engine. LT1's run hot anyway so what was GM thinking Plastic (really !!!!) The plastic boosters get hairline cracks in them that leak from expansion and contraction overtime so the rebuilt ones are no better because of many hours of heat on them from previous owners. That is why they do not last. Also all the rebuilt booster's are done by Cardone at Autozone even there Brand Duralast.

Big Darrell

Just installed a 84 metal brake booster in my 94 Corvette it fits and is a little smaller so it fits even better than the plastic. It comes silver so I painted it black with heat engine paint. Had to add 4 inches of vacuum hose to make it work because the location is lower left side instead of near the top. Just make sure your pedal center rod is the same distance to your master cylinder when you bolt it up. Still waiting on my new master brake cylinder coming next week but everything seems good so far.
Got it on Ebay listed as :

Power-Brake-Booster-ACDELCO-PRO-DURASTOP-Reman-fits-1984-Chevrolet-Corvette
Part# 14PB4299 Cost US $115.08 free shipping.

Hoser

Power Brake Exchange in San Jose (and another location in Socal) made the Auto Zone metal version. Not sure heat is an issue. The one I took off was original...I did have the m cyl stud spacing issue on th 2nd ACDelco booster.
Master cyl is a new AC Delco.

Big Darrell

Yeah that is the only thing I can see that will be different is the rod spacing, my 84 Metal Booster came with a metal spacer that goes in between the Master Cylinder and the 2 Booster studs to aid in adjustment if needed and then make sure to be care with the brake line threads not to cross thread them because that might be a little different as well in position but they will fit also with a little effect no big deal. Thanks for the great info.

Hoser

Looking forward to extended test report.😊
This has plagued c4 owners for a while. .for the longest time I thought I had a abs unit problem..it wasn't.

Big Darrell

Finished installing my 94 master brake cylinder with the abs hose connector on the side to the 84 metal brake booster everything fit. No major issues stock 94 vacuum hose has to be extended 4-5 inches to reach new location on 84 booster location left side lower position. Will bleed brake lines tomorrow but did the bench bleed today on the MBC before install. Both brake lines fit great with this setup.
I like this setup much better no plastic crap anymore looks like a ZR1 setup but only 2 mounting holes to line up on the firewall. Much better.
So this message is to all C4 owners you can install a 84 C4 Metal brake booster in any year C4 because it fit in my 94 C4. I was tired of buying those **** plastic ones that kept going out. The brake booster I used was a ACDELCO-PRO-DURASTOP Reman 1984 Chevrolet Corvette Part# 14PB4299 (comes silver painted black) make sure it is this part number, because this booster comes with an alum. mounting spacer you will need to achieve the proper pedal shaft distance between your brake booster and your master cylinder. You will need this spacer so everything fits right booster shaft to MBC.
Purchased 84 brake Booster on ebay for $115.08 with free shipping and no core charge.
Hopefully this will help all the C4 owners that are tired of paying for plastic crap. Don't buy any **** Cardone aftermarket rebuild junk ever. I have had nothing but problems with them over the years. Their optisparks are also total crap. Big Darrell out.

Hoser

Thanks !👍👍

Big Darrell

Here are some pictures : AC Delco Chevrolet 84 Corvette Part# 14PB4299 Brake Booster
Painted black they come stock silver painted.

CaptainMerricka

Welp, My brake booster just randomly decided to start leaking the day after I put the new heads on. I have only driven it for 1 day in the past few months and now the brake booster decides to buy the farm. Darn.

If that metal booster is still working for you, I may do that instead. Does it feel the same as with the plastic booster? If it is an upgrade and cheaper how could that be a hard choice? I hope mine comes with a spacer like yours. Are you sure it does come with that 14PB4299?

Smokeysvette

CURRENTLY SOLD OUT

Power Brake Booster-Pwr Brake Booster ACDelco 14PB4299 Reman

About this product

About this product

Product Details

• Sub Type
  Power Brake Booster
• Notes
  Description--Remanufactured Pwr Brake Booster, Feature--Includes a new mounting nut and washer where applicable to ensure proper installation, Feature--Leak tested to ensure safe and confident braking, Feature--Professional, premium aftermarket replacement
• 

CaptainMerricka

CaptainMerricka