 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Chevrolet / Chevrolet Trucks / February 2006HELP - 1998 K1500 - Rear Differential Fluid Identification
Looking for help identifying the fluid type in the 1998 K1500 rear differential. It is a 3.73 locking diff. Strangely enough, even though supplied with the VIN non of the dealerships are able to tell me what type of fluid to use. Everyone has just said 90W gear oil. Some have said it may be synthetic as well. I also had a parts person tell me to add a special bottle of GM additive for locking/limited slip diffs that is supposed to reduce chatter (which I'm not even hearing). Can anyone help me identify the type of fluid used in the diff. and also comment on that small bottle of GM additive that was recommended to me? Thanks. Forest > Looking for help identifying the fluid type in the 1998 K1500 rear > differential. [quoted text clipped - 14 lines] > > Forest Forest - It shouldn't be any secret, it should be spelled out clearly in the owners manual, if you have it. I'm surprised at the dealers in your area (wherever that is), they of all people should know. Since it's a 1998, I'd guess it's synthetic, but it could be 90w gear oil. As far as the additive, if it's a true locker, like in the old days, the additive is a must or it will make popping noises and jerk the vehicle when going around corners. It'll feel like one of the spider gears is missing a couple of teeth... it's really weird. On the other hand, if it's synthetic, the additive may not be needed. I believe I'd try to find an owners manual, do some more internet research, or try to find somebody (know any professional mechanics?) who has access to a set of the All Data CD's that cover your truck. Good Luck I can look it up tomorrow for you if you can wait that long I found the differential fluid type ... it is Axle Lubricant (GM Part No. 1052271) or SAE 80W-90 GL-5 Gear Lubricant. It does not make any mention of whether it is synthetic or not. It also does not mention anything about an additive. Thanks for the response. Forest >> Looking for help identifying the fluid type in the 1998 K1500 rear >> differential. [quoted text clipped - 28 lines] > > Good Luck I'm pretty sure GL-5 is not a synthetic. But I would make sure to put in the limited slip additive. > I'm pretty sure GL-5 is not a synthetic. But I would make sure to put in > the limited slip additive. I agree. Use the additive. > "scrapir" <scrapir@gmail.com> wrote in message > > I'm pretty sure GL-5 is not a synthetic. But I would make sure to put in > > the limited slip additive. > I agree. Use the additive. ========== ========== I disagree.......do NOT use the additive. GL5.....aka 80W90W is the correct fluid type....and is not synthetic. ~:~ MarshMonster ~:~ Yeah, but going to a full synthetic is in no way going to be detrimental, in fact for severe service it's definitely the way to go. Look on a bottle of Mobil 1 gear Lube. It will tell you that it is suitable for all differentials, including limited slip, which I'm sure that's all that is in your '98 chevy truck, and not a detroit locker. mark > Yeah, but going to a full synthetic is in no way going to be > detrimental, in fact for severe service it's definitely the way to go. [quoted text clipped - 3 lines] > that's all that is in your '98 chevy truck, and not a detroit locker. > mark ============== ============== I agree. Fact.....not fiction. ~:~ MarshMonster ~:~ |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.