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When To Change Diff. Fluid

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Old Aug 3, 2008 | 06:51 PM
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Default When To Change Diff. Fluid

My Clutch Pack was replaced aurond 5200 miles ago and I have no issues as of yet (Knocking on Wood and Crossing Fingers) with the Diff. Rattling and Clunking. I want to know when and if should the fluid be changed and is it like doin an oil change after so many miles.

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Old Aug 4, 2008 | 01:46 AM
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No Help Here??
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Old Aug 4, 2008 | 04:33 PM
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I am in the process of changing both my tranny and rear end fluids with only 1,300 miles on the car. I will be going with RP Synchromax in the tranny and RP Max Gear 75w90 in the rear. I just wanted to get the factory "breakin" fluid out. I would say do whatever you think and makes you feel better. I seriously doubt you will hurt anything leaving it in, however, you won't hurt anything by changing it either
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Old Aug 4, 2008 | 07:45 PM
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I changed mine at 10k with Amsoil Severe Gear 75w-90 and 1 bottle GM Posi-Lube and all is quiet.
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Old Aug 4, 2008 | 07:57 PM
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There is an updated TSB on this condition that utilizes the new DEXRON® LS gear oil, P/N 88862624.


Check it out:

http://forums.corvetteforum.com/1568036286-post3.html

Last edited by *FAÇADE*; Dec 4, 2008 at 09:33 AM.
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Old Aug 4, 2008 | 07:58 PM
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The DEXRON LS GEAR OIL 75W-90 (PART NO. 88862624) can be purchased from Gene Culley (GMPartsHouse.com) at this link:


http://www.trademotion.com/partlocat...&siteid=214638






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