Clunk! goes the rear end...

[Goldmember]

Was on the way to my local Mustang Club meet and as I rolled up to a stop about half a block from the meet, I distinctly heard and felt a clunk coming from the back of the car. I'm thinking rear U-joint, since the front has been replaced already, but what might have caused that? I should also mention that I'm at 99K and rear gear fluid is next on my to-do list. The clunk happened just after I put it in First rolling to the stop (so 3-5 mph tops). It was enough to bother me, but the car was running fine before/after with no odd vibrations other than the rattle I have somewhere in the back going from a stop.

What caused that clunk/knock?

 

[xsoutherngun89x]

sometimes u feel the tranny engaging when shifting down to first. did u shift down kinda hard? if it was ure diff u woulda been
walkin home, lol. u normally hear a clunk and a mile later u blow the diff. lol. (used to be into offroadin heavily)

 

[Goldmember]

lol nope didn't ram it into gear... very little pressure on the lever, usually it'll go into First at 10 MPH smoothly if the trans is warm. Here, much closer to a stop.

Made the ~25-mile ride home from the meeting no problem and got to and from work no sweat today, so I guess I'm not about to lose a diff (Thank God!)

 

[xsoutherngun89x]

hell, if u can downshift matchin revs u can disregard that bs ford tell u. if u match the revs u can downshift to first over 15 mph.
but if u do it wrong u can screw up a trans real quick. thankfully i learned how to drive an old truck with worn syncros, got real
good at matchin revs, lol

 

[Goldmember]

I used to be really good at rev-matching, had two high-mile Camrys with worn trannies. Then I had 3 automatic cars in a row lol... gotta get back into practice!

 

[xsoutherngun89x]

haha, yea im even decent/good at heel/toe.

 

[Goldmember]

Never tried heel/toe... always looked like fun though. Is that your gf in your pic?

LOL i just threadjacked myself!

 

[Jrgunn5150]

So you were in neutral or on the clutch and it clunked? When did it clunk, when you came to a full stop? Or just randomly?

 

[Goldmember]

I was on the clutch, in 1st, rolling to the stop and I heard and felt it. If there's traffic, I'll pop it in Neutral and take my foot off the clutch but there was none so it was just gonna be a fast stop and go

 

[xsoutherngun89x]

Never tried heel/toe... always looked like fun though. Is that your gf in your pic?

LOL i just threadjacked myself!

yea, there are more pics of erica in the girlfriend thread in the hotties section

 

[Goldmember]

Saw them too :santa_afro: Ya done good sir

 

[xsoutherngun89x]

"takes bow"

thank you, thank you. lol. there are...ahem...more "revealing" pics of her, but she doesnt want those on the interweb, lol

 

[Goldmember]

lol I wonder why!

 

[Jrgunn5150]

It may have just been the rear end squirming around, or a u-joint. There was no load on the rear, and you didn't put one on it, so that's isolated as a cause.

Still have stock control arms and bushing's? Stock quads?

 

[xsoutherngun89x]

lmao, prolly cause the last time we had..."videos" on her photobucket it got hacked into and her whole school saw erica and me
in my room...and we werent reading books. lmao

 

[Jrgunn5150]

Hey I saw that vid! Lol, j/k dude, but very funny, lol.

 

[Goldmember]

It may have just been the rear end squirming around, or a u-joint. There was no load on the rear, and you didn't put one on it, so that's isolated as a cause.

Still have stock control arms and bushing's? Stock quads?

Yes to your questions, and I ruled out the shocks b/c I'd hear a loose/worn shock clunking over bumps... idk if the "horizontal" ones make similar noise

 

[Goldmember]

lmao, prolly cause the last time we had..."videos" on her photobucket it got hacked into and her whole school saw erica and me
in my room...and we werent reading books. lmao

LOL oops!

 

[xsoutherngun89x]

haha, yea i know. but were both well known in her school, lmao. ive almost had to beat a bunch of punks over comments to her though.

 

[Jrgunn5150]

I don't think it's your diff, I beleive it's something else. The quad shocks do clunck when worn as well. If you are really concerned, jack it up and start jerking on thing's.