2006 Silverado rear end clunking - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-18-2015, 10:51 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2015
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
06silverado is on a distinguished road
Default 2006 Silverado rear end clunking

I have a 2006 silverado 1500 4x4 and i put a true track in it today and put enough shims in it so it was tight and everything went together just fine filled it up with some valvoline 80w90 conventional oil. I took it for a test drive and on deceleration it was clucking at a constant pace, give it a lil bit of gas and it stops, as long it has a little bit of torque on the driveshaft it doesnt clunk. But as soon as you let go of the throttle it clunks. Also when i change from reverse to drive and from drive to reverse it clunks pretty loudly. Any help appreciated.
06silverado is offline   Reply With Quote
Old 04-18-2015, 11:45 PM   #2
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Get under it and twist the driveshaft with your hands. Find where the clunk is at, or at least eliminate the u-joint itself.

Because this isn't a stock application, and we can't see inside your diff, we can already assume something isn't correct.
Mike is offline   Reply With Quote
Old 04-19-2015, 10:44 AM   #3
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2015
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
06silverado is on a distinguished road
Default

i made a video to show you guys what its doing. Also when its in neutral and in the air when you turn a tire there is a lot of slack till the driveshaft moves. http://youtu.be/dLiTk8MFLvo
06silverado is offline   Reply With Quote
Old 04-19-2015, 05:36 PM   #4
Senior Member
True Car Nut
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,589
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

That clunk sounds like it is coming from the rear diff, but I am not there.
Can you tell where the sound is coming from?
When it is clunking, put your hand on the diff cover, and see if you can feel it.
Next is to take the rear diff cover off and inspect & look at gears etc inside.
Something is shot.
Soft Ride is offline   Reply With Quote
Old 04-20-2015, 01:50 PM   #5
Senior Member
Posts like a Turbo
 
Join Date: Oct 2011
Location: SC
Posts: 247
Thanked 50 Times in 43 Posts
garagerog is a jewel in the roughgaragerog is a jewel in the roughgaragerog is a jewel in the rough
Default

I seem to remember a previous thread that you had started about this problem when you had asked opinions about the True Trac, it'* possible that your original problem was not with the OE locker but with the ring and pinion gears, I'm far from a diff expert but if it was me I would take it to a shop that specializes in differentials where they'll check the ring and pinion gears for wear, proper mesh, lash, etc. I'm leaning towards the ring and pinion as you had stated earlier that while under torque there was no noise, just while backing off. Sounds like gear slop to me.

2004 Bonne SLE
1971 Chevelle SS 12 bolt with 210k original miles
garagerog is offline   Reply With Quote
Old 04-22-2015, 12:03 AM   #6
Senior Member
Posts like a Supercharger
 
Join Date: Apr 2015
Posts: 156
Thanked 21 Times in 17 Posts
John01 will become famous soon enoughJohn01 will become famous soon enough
Default

When I was in Chevy parts, 2000-2008 Silverados were always in the shop having R&P'* replaced. These trucks were mostly "family cars" that never saw an inch of off-road or pulled a pound of trailer. Just poor design, evidently. Between the R&P'* and bad tires (stock 16"ers), they wore us out.

Though I had a set of gears on the shelf with my name on them, my 2000 was one of the good ones that never gave me ounce of trouble.
John01 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Rear End Silverado hibrad2005 Lounge 3 12-10-2007 06:50 PM
Clunking from front end? suctoes 1992-1999 1 12-23-2005 09:48 PM
Clunking sound coming from front end. 96LeSabre 1992-1999 13 06-09-2005 12:35 AM
Clunking from front end and suspension modes are disabled along 1992-1999 11 06-05-2005 12:07 PM
Clunking from front end Mossirg1147 2000-2005 7 03-03-2004 09:31 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:08 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.