clunking rear end ?

[afr]

ok chevy guys it seems i have a clunking in the differential on my 01 silverado ?
as i rock the truck in park i hear and feel a clunk in the tire and it is slipping from a stop sign
if i go really slow and let it roll off its not as bad
any ideas
i will see tomorrow how much slop is in the pinion by turning it on flat ground in neutral

[vnemous]

universals good

[afr]

seem fine on the u joints and no squeaking at all

[afr]

http://www.youtube.com/watch?v=KbMZ9vcYVSg
i worked the chit out of it the last few weeks towing i must have hurt it somehow
or its just the 125000 miles on it now

[davemvegas]

worn out clutches in a limited slip or posi trac rear generally does not make any noise or slippage going straight. the signs of bad clutches is a popping or catching when turning. or a crab walk feel going straight. hard to explain but when accelerating in a straight line at light throttle the rear will feel like it binding up a little then snap loose. 2 different size tires on the rear will cause it to do the same thing. if it is a steady bang,bang,bang noise could be a broken tooth on either the ring gear or pinion or both. a loud bang every now and then is usually caused by the cross pin retaining bolt sheared off. that lets the pin walk out until it hit the pinion gear and gets knocked back in. that is until it slides out a little to far and tears up everything.

[afr]

worn out clutches in a limited slip or posi trac rear generally does not make any noise or slippage going straight. the signs of bad clutches is a popping or catching when turning. or a crab walk feel going straight. hard to explain but when accelerating in a straight line at light throttle the rear will feel like it binding up a little then snap loose. 2 different size tires on the rear will cause it to do the same thing. if it is a steady bang,bang,bang noise could be a broken tooth on either the ring gear or pinion or both. a loud bang every now and then is usually caused by the cross pin retaining bolt sheared off. that lets the pin walk out until it hit the pinion gear and gets knocked back in. that is until it slides out a little to far and tears up everything.

sounds like its is in the rear someplace

[albypine]

Emergency break shoes falling apart ..... Pull the rear rotors and get a look see .... Have fun.

[afr]

Emergency break shoes falling apart ..... Pull the rear rotors and get a look see .... Have fun.

could be the breaks are all original 125000, miles

[albypine]

Lol have fun with that . I use a really big hammer to get the nasty ones apart and have it down to about 5 good smacks to spit the rotors when the linings fall off the emergency shoes and lock the rotors up.

[afr]

Lol have fun with that . I use a really big hammer to get the nasty ones apart and have it down to about 5 good smacks to spit the rotors when the linings fall off the emergency shoes and lock the rotors up.

really its not that hard your doing it wrong lol

[afr]

the leaf springs are slpping on take off

[njj502]

Check the yoke that goes into the transfer case. They have issues with them clunking. My 99 half ton does it pretty bad... I did clean & grease it all and it helped.

Sure your T-Case isnt about to blow the chain out the side of it?

[albypine]

really its not that hard your doing it wrong lol

just beat a rotor off a 05 . Salt land we use really big f ing hammers and replace everything new so it can be repeated in 8 years slip yokes can be a problem on the drive shafts , buy usually around 200k and lack of service . Did you get a look at the e break shoes ?

[afr]

just beat a rotor off a 05 . Salt land we use really big f ing hammers and replace everything new so it can be repeated in 8 years slip yokes can be a problem on the drive shafts , buy usually around 200k and lack of service . Did you get a look at the e break shoes ?

no not yet alby

[outasite]

Your post seems to indicate two issues,first the "clunk" that may be a e-brake lining but sounds like maybe a spider gear pin in the diff wollerd out.The second issue "slipping"on take off,could only be a trans issue.Its dought full you have both,bad diff and bad trans at the same time.---If you could explain the slip issue a little more it may help.