Well been having some problems with my fiancés car,

 

So I can hear a thumping in the rear, thought it was a wheel bearing lifted the rear up to check it, not the bearings... Started to turn the wheel and I can hear and feel it in the diff? Like when the driveline butts up and goes in to the diff...?

 

And

 

Started snowing the other days, so put her in 4wd, felt like the rear was almost locked up and didnt want to make a turn easy, and put it out of 4wd, hear a KLUNK, was not a good and not a normal noice....

 

Anyone what what's goin on?....

 

Thanks

Is this a push button. Or hi/low? Not sure if this helps but when I take out of 4wd (push button) my trans "klunks" as it disengages not sure why but it hasn't effected anything and my mechanic told me not to worry.

 

Not sure about why it's having trouble turning.

Is this a push button. Or hi/low? Not sure if this helps but when I take out of 4wd (push button) my trans "klunks" as it disengages not sure why but it hasn't effected anything and my mechanic told me not to worry.

 

Not sure about why it's having trouble turning.

 

It's push button, I've had two of these cars before and it's never done this bad of klunking before so that's what started to make me wonder if somethings going bad... It'd just suck to have my woman be stranded 100 miles away from me before Ifix it... Haha.

 

Thanks guy!

Rear diffs rarely break if you aren't being stupid with them. I'd be much more suspect of the U-joints in the rear driveshaft. It's pretty easy to unbolt the middle section of driveshaft from the diff and the carrier bearing. If the noise goes away when you drive it, you know that's your problem. You can also check the joints while it's out.

Sounds like a rear diff bushing. Mine clunks when I hit the gas and occasionally when I disengage 4wd

 

they always bind a little when your in 4wd and turning

 

Tire size and pressure is pretty important they all need to be the same size and pressure or things will bind even more.

Edited March 25, 201214 yr by AKghandi

Rear diffs rarely break if you aren't being stupid with them. I'd be much more suspect of the U-joints in the rear driveshaft. It's pretty easy to unbolt the middle section of driveshaft from the diff and the carrier bearing. If the noise goes away when you drive it, you know that's your problem. You can also check the joints while it's out.

 

Makes sense! I'll try and try that tomarrow! And yeah I know she's not stupid with her car she drives it maybe 5miles a day so, nothing that would actually break the diff

 

Thanks!

Sounds simple but check the tire size... you won't have a problem until you pit it in 4wd.

 

Might as well start with the easy stuff

I had the push button and mine did this as well.

If you drive you car in 4 wheel drive above like 20 mph often and your back wheels aren't slipping it's really bad for the tranny and the diff unless it's AWD obviously.. I've been there and right now I only put it in 4 when I'm in Gravel or Snow... So far it's been making noise for quite a while but If you drive in front all the time I don't think you'll have any problems, Just don't go to 4 unless you have too

Well the thumping noice in the back happens at lower speed and seems to fade out the faster you go and it happens when it's not in 4wd.

The KLUNK seemed to start at the same time. But I don't know for sure. And yeah I made sure she knew only use it if you have to. It's still drivin!

 

Havnt had time to look at it, been building a carport for my grandparents. Yay for architecture!

Kinda sounds like a bad driveshaft carrier bushing or a U joint.