Lumarus

i have a 82 z28 5speed with vortec 355. stock rear end. whould this brog warner 9in posi be a good upgrade? Cost is only 200$

THIS IS THE ADD:

I have a very nice Borg Warner 9 Bolt Posi for a 3rd Gen Camaro/Firebird. It has a 3.45 Ratio. I originally purchased this Rear End to put on my 1982 Camaro, but Went in a different direction. The Gears are nice and tight. There is Fluid still in the Differential. This is a Disc Rear. I have the Calipers and Rotors. The Calipers should be rebuilt or Exchanged. This whole setup is rather uncommon. If you're going original on your 3rd gen and you want a posi, this is your only option. Just try to find one of these on your own. The 3.45 Ratio (10 bolt GM would be 3.42) is about the sweet spot for performance and highway driving. Come take a look at it, Perhaps i'll TRADE for other Camaro Parts. Call me. 200cash


i saw the add and thought since mine only spins one tire in a hot break maybe this whould be a good way to burn 2 tires and charge myself double next time i buy tires lol. any thoughts? my car is also rear drums. this add warner has discs from wat i understand. that hard to change?

Lumarus

also any thought on wheel hop? my car is also ttop, my engine maybe pushing 350hp or a lil more. whould frame supports be a good idea if that posi were to be installed?

loneroad

iTrader: (3)

theres a debate over the 9bolt and 10 bolts. if you do a search youll be able to read al about it. . if you do buy it make sure to get the proportioning alve for the brakes.

loneroad

iTrader: (3)

not hard at all to change.get the car off the ground. put a jack under the rear.

disconnect the ebrake cable at the adjuster(near the tunnel)
disconnect the brake lines at the t. (above the rear)
disco the drive shaft
disco the panhard bar
disco the t/a
disco the contol arms
disco the shocks

let the jack down and pull it out.

//<86TA>\\

iTrader: (15)

the problem with those 9 bolts is if the posi is worn out, its damn near impossible to rebuild and finding parts is a *****.

My opinion? pass.

Lumarus

also another thought, i talked to the owner of the warner and he said he is confident nothing is wrong with it, and will even help me install it if i wanted...? he said ther is no 'Play" in it at all its reall tight and he has the disc breaks still so that i can change my drums to discs

//<86TA>\\

iTrader: (15)

its a 20+ year old part. Unless it came out of a zero mile car, its worn. He can say all he wants.

you cant feel is a posi good by hand, the car makes a lot more torque to the wheels than you could even product with you hands.

iron or aluminum calipers? Iron calipers blow FWIW.

for 200 bux, if it works, sure it a good price. but if its worn out, its 200 bux in the trash. You should pop the cover off anyway, since im sure it needs new fluid, see how many steel shavings are in the oil, and what the teeth on the carrier look like.

Lumarus

he also said it come out of a 85 TA about a year ago,....maybe thats y he didnt put it in his camaro? worn? so only way to tell is to remove cover, check for shavings and count the teeth? wat else should i look for? and wat other way could i check to see if its all good. if its bad, wat whould be a decent posi for decent price i could put in my mild street car? im sure i have around 350hp more or less. 5speed.

//<86TA>\\

iTrader: (15)

the 85 will have iron calipers. The 9 bolts (not 9") use a cone type posi setup, there are conocal shaped pieces that are forced into the case itself, they wear the case and they work. so eventually they wear out the case and they are crap. Chances are its toast, and since its a 9 bolt, parts are hard to come by.

reguardless of what posi you use, the factory rears in these cars are pretty weak, and if you beat on them they will eventually blow.

Cheapest way to go would be to find a late model complete 4th gen rear, with the proper gear ratio and a posi, since they had better ones, some have the Torsion setups which are quite nice. they are no stronger than what you have now, but will have better brakes and less wear on the diff. they are 2" wider per sode though, so your wheels will move.

After that, your looking at aftermarket setups, either the Moser or Strange 12 bolts, a couple differenc 9" ford rears or the dana60 from strange. Your looking at about 2500+ for these.

regal301

you cant find one for a reason..........

run away

loneroad

iTrader: (3)

I have this rear and the brakes. ive never understood why people hate the iron calipers so much. when i put mine in i got new rotors and ceramic pads, mine stops far better than the drum setup that was in it.

people are starting to carry the parts for these rears now. you can buy a locker setup from LOKKA. and the new GTO center section is a drop in.

9bolt.com also carries spools and gears and cones.

you have 350hp/tq now. where wil you taking the car to in the future, that is the real question Power is addictive. If you stay at that level id say go for it.

more than that or adding a power adder or plan on doing clutch dumps with slicks, you should save for the aftermarket rear.

All parts have their limits. some fail quicker than others,some last forever. some people have had their 10 bolts last, and others swap in the 4th gen 10 bolt and blow that a few weeks later. when you start upgrading your car , you will find the weakest link. Im sure you will find out with that t5

i cant testify for anyone else, ive had good luck with my rear. Mine stops fine, and launch with slicks on spray.but ive come to the point where im changing mine. im going to be getting the moser 9 and doing a complete brake swap.

Lumarus

well sounds like i should pass. ill prolly wait to buy a whole new setup prolly 10 bolt. but idk, like to get the best priced i can find. ima keep shoping! thanks for the replies!

abray1

Hell no take it. The 9 bolts are superior to the 10 bolts but parts are a little harder to get. You can get parts at 9bolt.com. Once you get one fixed up they last forever. I have several of them and they function perfectly. there design is better than a 10 bolt also. In a stock vehicle they are perfect. 345 is a much sought after gear and you can find brackets and add the PBR rear disc aluminum calipers that only came on the 89 model cars with 9 bolts. I just put a 327 geared 9 bolt posi with the aluminum PBRs and 11.7 rear disc brakes under my vert. Even if you use a 10 bolt you need to get the 90-92 large rear disc brakes.