JohnnyRSFL

So I purchased a Gm Eaton Carrier on ebay for my 1992 Rs since the old unit was worn and noisy. I installed it with a friend trying to use the original ring and pinion.the car would not move. Anyone have any advice on what I need or how to do this install to get it to work?

big gear head

I'm guessing that you don't know anything about backlash. Read this. http://www.nastyz28.com/forum/showthread.php?t=19773

Hopefully you haven't destroyed anyting yet.

That GM Eaton that you purchased from ebay is probably the Governor Lock. Did you get the correct series for the gear ratio that you are using?

JohnnyRSFL

Hey thanks for responding so swiftly..I will get a pic of the unit... I do believe it is stock gearing in the rear end I think it is 308

JohnnyRSFL

http://www.ebay.com/itm/221470616369?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT this is the unit i bought...

JohnnyRSFL

So I am guessing I need new ring and pinion?

USEABLE RATIOS FOR THIS UNIT: 3.23 - 4.56

DynoDave43

iTrader: (11)

Looks like it.

I may be confused, but I thought only the 5 spd. RS cars came with 3.08s, and the automatics had 2.73s.

JohnnyRSFL

Well maybe they changed this rearend or something cause It would do 70 mph at about 1500 rpms so I am guessing 3.08

JohnnyRSFL

By the way it is my first time ever messing with a rear end,and I am appreciative of any and all advice in that department... I am/was more of an engine/body man kinda guy!

DynoDave43

iTrader: (11)

May have been changed...I may be wrong. It's been a lot of years since I bought mine new.

JohnnyRSFL

I disassembled the rear end and it does not look like anything is damaged,when i tried to move it after last assembly i didn't romp it or anything. As soon as it acted like it didn't want to move,I shut it off and called it a day.

big gear head

If you have a 2.73 or 3.08 then it will not work with this differential.

I'm not trying to put you down or anything, just trying to help. Before you purchase parts for something that you don't know about it's best to ask the people who do. We could have saved you from some problems with this.

The guy that you bought this from is a pretty good guy. His name is Jim and he has a web sight www.jdrace.com. If you need more parts for this rear end contact him and ask questions. He won't sell you the wrong parts if he knows what you are trying to do.

DynoDave43

iTrader: (11)

Glad to hear that about the seller. That looks like a good deal on that Eaton diff. I like those...have on in my Suburban.

JohnnyRSFL

Thanks so much for the help and I know you are not trying to put me down! Everyone has to learn sometime! =) I guess it is time to purchase ring and pinion gear.. BGH so as long as i get 3.23-4.56 ring and pinion it will work?

JohnnyRSFL

Oh and also if you check the description on the carrier I bought you will see it says it will fit a 1992 rs camaro

big gear head

A standard 3.23 to 4.56 gear will fit the 3 series differential. Be careful, there are also special thick after market gears in these ratios that are made to fit the 2 series.

Yes, the 7.5 and 7.6 Governor Lock will fit a 3rd gen Camaro, but they came out of S10 trucks.

If you need a gear and installation kit contact Jim again and get them from him. He has good prices and quality parts.

sofakingdom

iTrader: (1)

That's a Gov-Lock. Arguably the ABSOLUTE WORST POSSIBLE carrier you could put in a "performance" car. I'd personally rather have even an Auburn, or an open, than that. It's not really a "posi". Instead, it is a normal open diff, until the RPM difference between the axles exceeds some pre-determined value, somewhere around 150 RPM; at which point it locks up with a bang. Sometimes LITERALLY with a "bang"; as in, "explosion". One member here some years ago posted a pic where the shrapnel punctured the diff cover, went through the heat shield that's back there, and ended up in the gas tank. Now there's a comforting thought for ya: red-hot sparking metal shrapnel in your gas tank. But even if it survives, it's STILL not a "posi"; note that NO POSI ACTION WHATSOEVER occurs, until AFTER a wheel is ALREADY spinning.

Feel free to troll the truck message boards and enjoy the accounts of the carnage. They're in full-size trucks as well as S trucks, although of course the ones in the full-size won't interchange into these cars. Same basic product though.

http://www.fullsizechevy.com/forum/g...-gos-boom.html
http://www.fullsizechevy.com/forum/g...lace-same.html
http://www.fullsizechevy.com/forum/g...0-trouble.html
http://www.fullsizechevy.com/forum/g...lowing-up.html
http://www.fullsizechevy.com/forum/g...p-options.html

Sorry, couldn't find one with a pic of the grenaded shrapnel... visuals are always cool.

Don't spend another dime on it. If he'll give you your money back, get it; and buy something else.

Yes it will "fit" a 92 RS. It will however NOT "fit" the gears you have now. You will HAVE TO buy gears with ratio 3.23 or higher to "fit" it.

I would STRONGLY recommend NOT putting that in your car, "fit" or no.

JohnnyRSFL

I bought the 3.42 ring and pinion Jim had listed.... =D

JohnnyRSFL

Well It is currently my only mode of transportation and the only carrier I could afford, Not all of us have dollars pouring out of our ***** LOL I am on a budget and I need the car on the road lol. I lost my job of 7 years and things are kinda tight. I would not have even attempted to do this myself had I a choice. I am doing whatever I can to recover transportation to swiftly get another job. But thanks for the info all of it is appreciated =D

big gear head

Have you read the thread on gear installation in the FAQ about 10 bolts sticky? If you haven't then you need to.

DynoDave43

iTrader: (11)

You'll be fine, Johnny. Don't do any 5k rpm neutral drops with your TBI 305 and automatic, and you'll be just fine. My Suburban just turned 100k miles. Larger wheels and tires, it's used for it's 4wd in winter (lots of locker action), to pull on trees while cutting them down in the summer, to haul fire wood in the winter, and tow our 5500 - 6000 lb. trailer in the summer.

Just had the rear axle taken apart this summer for a refresh of bearings/seals, a ratio change, some Mobil 1 synthetic fluid, and Mag-Hytec cover. The carrier is perfect.

You can break anything if you abuse it. There's nothing inherently wrong with this Eaton piece.

A limited slip differential might be a better match to a handling car Vs. a truck, but it should serve you well. Just use some common sense when cornering on a slippery surface and accelerating. When it locks, it's all in...100% on or off...and can kick the rear end out. Nothing uncontrollable if you are aware of it and keep your wits about you, but "different" than what you might be expecting in a handling car.

JohnnyRSFL

Will definitely check it out thanks so much BGH

JohnnyRSFL

Thanks Dyno and yeah I baby the car mostly,I just need it for primary transpo for a few more months then I can go back to original intention of restoring it and souping it up a bit...