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Author Topic: 2003 Z66 needing new shocks...  (Read 1968 times)

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streborhcaz

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2003 Z66 needing new shocks...
« on: 02/06/07 03:43 PM »

Have approx. 62,000 miles on my 2003 Avalanche and am getting closer to the time for new shocks. I've searched this board and didn't find too many suggestions for a Z66. I've always heard they have load leveling shocks in the rear, is this true? Anyways post your shocks and how you like them, Thanks!
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2007 Silver Birch Metallic Avalanche

TexasTom

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Re: 2003 Z66 needing new shocks...
« Reply #1 on: 02/06/07 05:10 PM »

If you have the large diameter, (black) Sachs self levelors, unless you have been hauling lots of HEAVY stuff, it's highly unlikely that you will need new REAR shocks before 150k miles. I'm at 127k and they feel like new to me.  These are incredible shocks. I did replace the fronts, at 90K with Monroe Reflexes..Rides great !!
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RENORCR

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Re: 2003 Z66 needing new shocks...
« Reply #2 on: 02/06/07 11:20 PM »

If you have the Z66. You should have the Black Sachs self leveler. They really do work.
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ygmn

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Re: 2003 Z66 needing new shocks...
« Reply #3 on: 02/07/07 05:57 AM »

Shocks do not go out on mileage and can last a long time...

replace em when they need it IMO..

do the bounce test...

jump up and down on corner and truck should go down then up and stop
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streborhcaz

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Re: 2003 Z66 needing new shocks...
« Reply #4 on: 02/07/07 07:05 AM »

My dad was looking at them the other day and suggested I get new ones. I'll defiantly talk to him about it more before we do any un-needed work. 
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ygmn

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Re: 2003 Z66 needing new shocks...
« Reply #5 on: 02/07/07 07:08 AM »

If they are leaking oil... replace them...

If no oil and they stop the bounce test they are fine...
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RENORCR

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Re: 2003 Z66 needing new shocks...
« Reply #6 on: 02/07/07 09:20 AM »

Hmm, examine tires for unusual wear, like cupping.
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2003 1500 Z66 Black (SVO/PI) - BLT: 11/02  Arrived: 4/03
Light Mods: Amber FT/DRL's, Blue/Red LED, Hood Light, Kickpanel lights, Maglight mod
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Engine Mods: 145 Amp Alt, Aux Trans Cooler, Flexalite Oil Cooler, Painless Dual Battery

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Re: 2003 Z66 needing new shocks...
« Reply #7 on: 02/07/07 09:29 AM »

I have 90K+ and still using the OEM ones in the rear.  The self-leveling one will run you a few $$ so just be prepared
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atlantaavman

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Re: 2003 Z66 needing new shocks...
« Reply #8 on: 02/07/07 04:30 PM »

I just rolled over 75K on my 03 Z66 and my shocks are as solid as the day I bought the truck new.
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Mdz66

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Re: 2003 Z66 needing new shocks...
« Reply #9 on: 02/07/07 06:48 PM »

I have 55k on my Z-66 and occassionally haul heavy loads and mine work like new.   I also replaced the fronts with the Reflex and really like the ride.    Matt
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dakota745

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Re: 2003 Z66 needing new shocks...
« Reply #10 on: 02/07/07 06:58 PM »

I have 77,105 on mine and rids just like new.(2002z66
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