the rear tires chirp when im turning while going slow. Im not gettin on the throttle or anything. Just reguler driving. the rear end does not leak oil. I havent checked the level. Ive had the truck about two years and am just now noticing this noise. ANy ideas?

 

must be the limited slip rearend locking up. NORMAL
DM01

 

Yeah, it's normal, mine do it too.

4x4

 

It must be more noticeable on the 2500 series, which would make sence. One tire chirps, not enough friction to over come LS clutch's. While the two tires does, and cluthes release.

 

I would change the rear diff fluid and be sure to add the limited slip modifier to the oil. If it wasn't added the last time it was changed, it will be hard on the LSD. my $.02

 

yeah man just change oil and additive and it will stop. I had that trouble and found what i needed in here. great site

 

Do you by the modifier at dodge,cummins? Can it be bought at local parts store?? If so what brand? And what does it do??Thanks Rick

 

Most reccommend to purchase the modifier from Dodge. I have seen it at stores like Autozone. What it does is make things "more slippery" (like the clutches in the diff) so it eliminates the "to much grip problem".

I'm not so sure that you are having a problem, but since it concerns you, the first thing I would do is change out the fluid. I personally like a synthetic in the rear and use Mobil 1, however if you tow heavy, according to my owners manual for 1997 it states you can purchase a 90w-140 synthetic from Dodge (don't quote me on the exact winter weight, but I am sure about the 140).

The reason I like synthetic is that the polymers are more resistant to shear then conventional oil, and in your diff there is lots of shearing going on with the gears. The diff will run cooler, and the fluid will hold up longer (diff fluid has a tendency to be ignored). The bearings like it also.

The other reason I like it is that in my case, on two separate vehicles, I did not need the modifier. This is dealt with on an individual basis.

If you do decide to use the modifier, go slow and add small amounts at a time. Do figure eights in a parking lot, and add a little at a time untill you get the right feel and no more popping or chatter. To much modifier and you now have an open diff, so go sparingly with it. Good Luck, Kevin

 

I think an oil change will be happening for me. Thanks for all the replys.

 

I am running heavy weight royal purple. Bottle says no additive needed. Still chirped. Even though this is normal, I later put in some good additive. Still act's the same. I like it that way because of moore traction & better burnouts when playing. ;D But there is nothing wrong with your truck. Go ahead and change the oil if not done recently. Don't forget the front if you have that.

 

Do you guys know if limited slip was a option? I pulled mine down today also,and it is not a limited slip,by the tag it is a 3:54 dana spicer 70,just curious as I did not buy truck new?Thanks Rick