DRIVE2FAST

NOW MY DIFF WONT UNLOCK WHEN I DRIVE AROUND CORNERS. DAM. IS THERE A WAY I CAN PULL (OR REPLACE) THE SPRING PLATES WITH THE REAR END ON THE CAR TO LET THE DIFF WORK WHEN THE CAR TURNS CORNERS. THE METAL GRINDING/ BINDING NOISE IS MOST NOTICEABLE AND YOU CAN FEEL IT WHEN MANUEVERING IN A PARKING LOT OR BACKING IN SPACE ( WHEN THE CAR IS PIVOTING AND ONE AXLE IS TURNING MUCH SLOWER THAN THE OTHER ) FORTUNATELY I HAVE A DUPLICATE GEARED REAR END FROM MY TRANS AM I CAN USE WHILE I FIX THIS ONE ( AGAIN )

big gear head

Turn off caps lock and stop shouting.

First, what differential do you have? If it's the Auburn did you use 2 bottles of the GM limited slip oil additive? If not then do that before you do anything else. Drive it for a few days with the additive and see if it helps. Most of the time that will fix it. No need to remove the preload springs. It won't help.

DRIVE2FAST

CAPS IS STUK.
USED VALVOLINE 80W-90 GEAR OIL WITH LS ADDITIVE ALREADY INCLUDED IN BOTTLE. INSTRUCTIONS SAY RECO'D FOR CONVENTIONAL AND LIMITED SLIP DIFFS.
THE BINDING IS SEVERE AND VERY LOUD WHEN TAKING TURNS. IF A SIMPLE LS ADDITIVE FIXES THIS I WILL BE A SURPRISED FAT OLD MECHANIC.

DRIVE2FAST

10 BOLT GM 7.625 RING GEAR 3.23:1 RATIO 13T PINION 42T RING GEAR 28 AXLE SPLINES SPRING PLATE DIFF

big gear head

Put the 2 bottles of additive in there and be surprised. Most limited slip differentials only need one bottle, but the Auburn needs 2.

DRIVE2FAST

WILL A SUBSTITUTE FOR GM LS ADDITIVE WORK?

DRIVE2FAST

HOW DO I KNOW IF I HAVE AN AUBURN ?

big gear head

No, a substitute will not work. It must be the GM additive. The junk that they sell at the auto parts stores is not worth pouring out on the ground. If you have a factory installed limited slip differential then it is either the Auburn or the Governor Lock. If it has 5 springs in it then it's the Auburn.

Hopefully the cones have not galded to the point where they can not slip easily anymore.

DRIVE2FAST

ITS NOT A GOV - LOK . SEEN THOSE ON YOU TUBE . SO MUST BE AN AUBURN.

DRIVE2FAST

THIS IS THE KRAP THE LOCAL NAPA HAS

DRIVE2FAST

HEADING TO CHEVROLET DEALER NOW TO GET GM ADDITIVE. $12.00 SMALL PRICE TO PAY TO FIX A UPRADED REAR END WITH ALL NEW BEARINGS SEALS AND MOSER STREET AXLES.

big gear head

When you get the additive in there give it a few days to work. Many people recommend making figure 8s in a empty parking lot. If you can get away with that then give it a try. It will help get the additive worked into the cones quicker.

DRIVE2FAST

GOT 2 BOTTLES P/N 10-4003 AC DELCO LIMITED SLIP ADDITIVE
ADD (1) 4OZ BOTTLE OR (2)? DIRECTIONS SAY ONE.

big gear head

If you had a Eaton Posi, Yukon Dura Grip, Traction Lock or other limited slip differential then one bottle would be all you need. The Auburn needs 2 bottles.

DRIVE2FAST

PUT THE (2) 4OZ BOTTLES OF AC DELCO LS ADDITIVE IN. PUT TAIL END BACK 2GETHER. TEST DROVE FAST FIGURE 8'S. THE DIFF WORKS LIKE A CHAMP. GOOD CALL ! IF YOU WERE CLOSE BY I WOULD BUY U A BEER ( OR 2 )
NICE WORK. I AM AMAZED FAT OL MECHANIC @!!

91 1LE

iTrader: (1)

Now why don't you drive it over to Fry's Electronics and buy a new keyboard for like $5?

big gear head

Great. I'm glad it worked out for you. I've had a little experience with this stuff. I've been building rear ends for over 31 years and I owned a rear end shop for 15 years, so I've seen this many times. The oil additive almost always fixes the problem.

Something that you need to remember with one of these is that it is very important to keep the air pressure equal in the rear tires at all times and be sure that the treadwear is equal on the rear tires. If one tire is slightly larger than the other it will cause the differential to slip the entire time that you are driving. This will cause rapid wear on the differential and heat the oil.

DRIVE2FAST

I KNOW .. I SUK. LAFF

mr305

iTrader: (1)

hahaha

DRIVE2FAST

GOOD POINT. TIRES ARE GOOD CONDITION ALL AROUND. 245 / 50 / 16 FRT 255 / 50 / 16 REAR.