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Rear differential fluid change

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Old Jun 21, 2005 | 12:59 PM
  #1  
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Default Rear differential fluid change

How much can I expect to pay to have it done?
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Old Jun 21, 2005 | 02:16 PM
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Only a few bucks in material and 20 minutes time. Should not be more than $50.00 - $60.00
Bob
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Old Jun 21, 2005 | 02:22 PM
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I paid almost $50 for labor since I provided Redline Tranny & Diff fluid. I'll do it myself next time!
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Old Jun 21, 2005 | 02:57 PM
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Yea, do it yourself for sure. Get a suction gun from Harbor Freight for $4.95 and Redline (~$40.00) and 20 minutes of your time.
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Old Jun 21, 2005 | 08:34 PM
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This is really easy to do yourself. Drain bolt is on the bottom. Fill plug is on the back (10mm hex nut maybe?). I don't even jack my car up to do this for the diff, but it makes it a little easier. I do need to jack it up and put it on Rhino ramps for the tranny.

Takes two quarts of synthetic 75w90 and a hand pump.

I use these:
AMSOIL Severe Gear Extreme Pressure Synthetic 75w90
AMSOIL Hand Pump


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Old Jun 21, 2005 | 10:37 PM
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yeah, you got it 10mm hex, if someone doesn't have one and you have a 10mm allen wrench-you can cut a 1 inch portion of the wrench and combined w/ a 10mm socket you've got the bit(just makes it easier then trying to get in there w/ a wrench)
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Old Jun 21, 2005 | 10:40 PM
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Originally Posted by Subdriver
This is really easy to do yourself. Drain bolt is on the bottom. Fill plug is on the back (10mm hex nut maybe?). I don't even jack my car up to do this for the diff, but it makes it a little easier. I do need to jack it up and put it on Rhino ramps for the tranny.

Takes two quarts of synthetic 75w90 and a hand pump.

I use these:
AMSOIL Severe Gear Extreme Pressure Synthetic 75w90
AMSOIL Hand Pump


AMSOIL Ordering Information
AMSOIL Preferred Customer Program

with "Obie Wan" bingo!
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Old Jun 22, 2005 | 02:53 AM
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Don't forget to add the "limited slip differential additive" if you are draining and refilling the diff. fluid. Its inexpensive and available at most autopart stores.

coast7
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Old Jun 22, 2005 | 08:15 PM
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Originally Posted by coast7
Don't forget to add the "limited slip differential additive" if you are draining and refilling the diff. fluid. Its inexpensive and available at most autopart stores.

coast7
Most high performace diff fluids, such as the AMSOIL Severe Gear line, come with the friction modifier in them. I use this gear lube and do not use the friction modifier and I have no chattering issues. AMSOIL does say that if your diff chatters, it is safe to add a bottle of the friction modifier. I only have one of my hundreds of customers who actually uses this.
AMSOIL Slip-Lock Differential Additive
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Old Jun 23, 2005 | 09:05 PM
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How often should the diff fluid be changed?
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Old Jun 23, 2005 | 09:29 PM
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w/ a blower like yours, yearly , i think the gm shop manual says 100k
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Old Jun 24, 2005 | 06:22 AM
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Due it your self. With our club discount I got the stuff from GM dealer for less then $16.00 two 22 oz and one 4oz add plus a screw on tube to fill with.
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