My rear driveshaft is making a squeaking noise, only when under load, and only below around 20 mph. I jacked up the rear end with it in gear and the park brake set 1/2 way so the tires were spinning and crawled under there (safe, i know) and it sounds like it is coming from the very middle of the driveshaft, not the trans, no the diff, the very middle. I can't figure it out, it's not rubbing on anything, my only thought is that a u-joint or something is going out, and it's resonating to the center(?), but I've lubed everything. I checked very carefully several times, the sound is coming from the center, and it makes no sense! Does anyone have any clues?

 

rear u joint! My rear gave way at about 83k and i'm at 85k right now. She would only squeek at approx 20 and under, under load. Upon further investigation, it was my rear ujoint at the pinion.

Coming from the middle? Are you one of those folks with the two piece drive shaft? Could possibly be that bearing there if you do have a 2piece drive shaft. If you'vegot a one piece rear shaft, there shouldn't be any noise coming from the middle. My suspicion is the same as yours......Ujoint going out and echoing inside theshaft?

Change that Ujoint. it's supereasy to do....and upgrade to a greasable unit. I upgraded to a Spicer.

 

It's a one piece shaft. I sprayed the joints w/ wd40, wouldn't that temporarily fix the sqeak if that was the problem?

 

no.....


if the grease inside the caps are gone/burnt up.....they are still gonna squeek.

 

yeah ujoints. replace both while you are at it, only like 20 bucks

 

I forked out like $14 for bad *** Spicer units....i love them!

 

Where did you get Spicer u joints? I can't find them. I hate spending money replacing something if it's not better than factory. Yea, I looked up u -joiunts, and the 'expensive' ones are only like $20.

 

I got my spicers from a local driveline shop. Six States Distributers.....i understand they are a nationwide chain. Part #5-1203X

 

Spicer is the way to go...thats what all the drag cars at our drag strips use

 

I'm having trouble tracking down the Spicers, I think I'm just going to get Precision u-joints, they are in stock at the local Oreilly's and come with a lifetime warranty, so I'll never have to buy u-joints again.

 

Why without a grease fitting? grease fittings are my favorite! I have 9 of them in my collection

 

b/c if you are not paying attn like most people that grease u-joint grease fittings then you put too much grease in it to the point that the grease shoots out the seal at the bottom of the caps and they are ruined b/c they are no longer sealed and get water, dirt, mud etc etc and you are no better than you were before

 

lol i see....my old driveshaft used to clunk when i would switch from forward to reverse and my new one does she same thing, both with spicer u-joints and i cant figure out why

 

I know wd40 is a 'water displacer' It says it in the name, but it does, BELIEVE IT OR NOT, have more than 1 use. It is 15% mineral oils that will lubricate. hell, plain water will stop a squeak (until it dries). I did not say it was a permanent fix, I said it will temporarily stop the squeak. I was only using it to find the source of the problem. I'm sorry if you think I'm a dumbass, I hope I made you feel smarter today.

Also, I have bought new u-joints. $16 a piece, yes they have a grease fitting, they also have a life time warranty. They probably won't go on till next week because I'm out of town this weekend. Thanks for your help, everyone!

 

my truck has a LOUD squeek that is rotational, gets faster with vehicle speed not engine speed and only does it when its damn cold outside . then goes away usually in about 2 miles after ive accelorated past 30 MPH or so then doesnt come back till its cold again.


does that sound like your squeek?

cause ford put a driveshaft in my truck.. or so they said trying to fix a clunk i have and the noise was there before and is still there. they have also replaced the differencial, and ring and pinion, also trying to fix my clunk to no avail.


JOSH