mcwarren Posted May 19, 2003 Report Share Posted May 19, 2003 I checked the owners manual for front diff fluid specification and it calls for: SAE 80-90 Axle lubricant GM part # 1052271 I checked the GM service manual for front diff fluid specification and it calls for SAE 75-90 Synthetic axle lubricant GM part # 12378261 I wanted to change my axle fluids at around 500 miles as I have done on my prior GM trucks. I also wanted to be sure that the front diff in my SS had Synthetic Gear Oil. So, I drained and filled my front diff with part # 12378261. This stuff retails for $28.19 per bottle and takes about 3 bottles. So, I elected to put off my rear diff drain and refill with Synthetic GM gear oil until my next oil change which will still satisfy my desire to get that fluid changed fairly early and fit it into my budget. Link to comment Share on other sites More sharing options...
zippy Posted May 19, 2003 Report Share Posted May 19, 2003 good call. Link to comment Share on other sites More sharing options...
marc_w Posted November 7, 2003 Report Share Posted November 7, 2003 Holy crap that's expensive! Any reason why you didn't go with generic, off the shelf, synthetic fluid? I'm a little too cheap and stubborn. I just ran Mobil-1 75/90 in the front and rear diff's of my last two trucks. Link to comment Share on other sites More sharing options...
BenKey Posted November 7, 2003 Report Share Posted November 7, 2003 Amsoil gear lube goes for about $6 a quart. Link to comment Share on other sites More sharing options...
SuperSport Posted November 7, 2003 Report Share Posted November 7, 2003 I'm with Ben, you cannot beat Amsoil. as far as i know it's one of the best, if not the best, for any type of synthetic automotive products. Link to comment Share on other sites More sharing options...
ChevelleBoy Posted November 8, 2003 Report Share Posted November 8, 2003 Link to comment Share on other sites More sharing options...
mcwarren Posted November 10, 2003 Author Report Share Posted November 10, 2003 Holy crap that's expensive! Any reason why you didn't go with generic, off the shelf, synthetic fluid? I'm a little too cheap and stubborn. I just ran Mobil-1 75/90 in the front and rear diff's of my last two trucks. I bought a $40K GM Vehicle...I am not cheap....but I am stubborn...I am not concerned with saving a few bucks on some aftermarket product. I am an ASE certified Certified Master Automotive Technician as well as A GM Certified Master Technician, and have over 40 years experience in the Automotive Service field. I will continue to opt for GM parts and accessories or GM approved parts and accessories for my GM vehicles where applicable. Link to comment Share on other sites More sharing options...
ChevelleBoy Posted November 10, 2003 Report Share Posted November 10, 2003 This stuff retails for $28.19 per bottle and takes about 3 bottles. Is that quart bottles? Surely not pints at that price right? Link to comment Share on other sites More sharing options...
black03ss Posted November 21, 2003 Report Share Posted November 21, 2003 I did my front diff and transfer case , The front diff does have the12378261 synthetic fluid in it and the tcase uses trans fluid. Kevin Link to comment Share on other sites More sharing options...
GMike Posted November 30, 2003 Report Share Posted November 30, 2003 My 2002 Escalade AWD calls for the same fluids as the SSS. I just had the front and rear diff. fluids changed at the the dealer $29/quart and takes 3 quarts each. I also had a new fuel filter put on. Total bill with labor $299. Not inexpensive for sure, but good for piece of mind. Next time around I will try and track down some Mobil 1 75W-90. I looked all over locally here in KC, closest I could find was a synthetic blend. Link to comment Share on other sites More sharing options...
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