Rubbing/clunking In Rear Suspension 09 Sierra

Northern Sierra · September 11, 2009

I have a 09 Seirra 1500 Z71 and i just put wrangler LT285/70R17s on and ive noticed when i hit speed bumps or when im parked and i agressively shake the back of the truck side to side or bounce the suspension, i hear a very odd sound, any one having this issue. or idea?

Thanks chris

willymac · September 11, 2009

I have a 09 Seirra 1500 Z71 and i just put wrangler LT285/70R17s on and ive noticed when i hit speed bumps or when im parked and i agressively shake the back of the truck side to side or bounce the suspension, i hear a very odd sound, any one having this issue. or idea?

Thanks chris

Do you have a receiver hitch? When mine is in, the hitch moves around a little bit in the receiver and it makes a very distinct metal on metal echoing clunk when I hit bumps at low speeds or shake the truck around.

Northern Sierra · September 11, 2009

no bud thanks tho, not that, i take my hitch out when im not using it. seems to me like is coming from the back of the leafs. and when you shake the truck by the rear wheels it almost sounds like the drums are makin some noise.

jf781 · September 11, 2009

Maybe a stupid question - but did you torque the wheels back on to spec? Maybe double check them?!?

Northern Sierra · September 11, 2009

yeah i did, brought it to the dealer today and the mechanic figures its just the axle floating in the rear end. there was a buletin about re-torquing the leaf springs so they didnt that. seems to help in the bumps but if you rock it back and forth it still does it. oh well. got 5 and 3/4 years more warranty so not going to worry to much yet, its just one of those thing you know is there and bugs ya.

thanks, chris

shocktrp · September 12, 2009

Check the rear bracket on the tailpipe.

Also look at the rear of your drive shaft, does it have a shiny part (where the muffler was hitting it)?

I just got my truck back from the dealer (they did some warranty work) to find my tailpipe was hanging down because the bracket was no longer attached.

Here's my partially polished drive shaft;

shocktrp · September 12, 2009

Here's my bracket - I'm going to make them replace it.

Northern Sierra · September 13, 2009

ill have to have a look. what a bunch of shit eh? trucks keep gettin more expensive and the quality just isnt there. thanks bud will let you know if it was the same issue.

pm26 · September 13, 2009

ill have to have a look. what a bunch of shit eh? trucks keep gettin more expensive and the quality just isnt there. thanks bud will let you know if it was the same issue.

Speaking of trucks getting more expensive I had a sticker shock when I looked at a new F 150 4X4 recently. It was a crew cab Lariat with just about every available options and the sticker was over $ 48k!!!!!!!! How the heck do they get a 1/2 ton pickup priced so high is beyond me. And it had the same anemic 5.4 liter engine.

Northern Sierra · September 13, 2009

yeah they def. want an arm and a leg for them these days. just went and check out my truck and it not the exhaust. it sound like it coming from the drums or something. it does it if you shake either side. wheel nuts are tight just checked them.

Norseman · September 13, 2009

I have a 09 Seirra 1500 Z71 and i just put wrangler LT285/70R17s on and ive noticed when i hit speed bumps or when im parked and i agressively shake the back of the truck side to side or bounce the suspension, i hear a very odd sound, any one having this issue. or idea?

Thanks chris

Clunking Noise??? Sounds like it might be comming from the rear hubs???

How many miles on her?

Northern Sierra · September 14, 2009

yeah sounds like it. 10,800 km, going back into the dealer today.

Northern Sierra · September 14, 2009

dealer says its only axle play. sounds pretty rough to be normal. bought a brand new truck and it sounds like i drive a piece of shit. any one with a 08-09 sierra grab the top of your back tire and shake it back and forth to see if you get this same knocking clunking sound.