Suspension replacement - springs or no springs - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Brakes, Suspension, Wheels and Tires > Suspension

Suspension Suspension

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  #1  
Old 04-17-2019, 08:58 PM
madmac66 madmac66 is offline
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2007 Chevy TrailBlazer LT
Silver Mist Metallic 4.2L I6 4X4
Join Date: Mar 2015
Location: Fullerton, CA
Posts: 16
Suspension replacement - springs or no springs

So Iím about to buy all the parts for a full suspension replacement on my 07 TB LS with 125k miles. The vehicle is not used much these days. We bought a third car and kept the TB just for pulling a trailer which has now been sold. So itís really only used for the odd school run or trips to Home Depot. That said, we are going on a two week family road trip this summer in it.

Been doing some research but before I make my decision and buy the parts I have some questions

1. Anyone familiar with the A1auto/THQ brand? I did ball joints, sway links, control arms etc last summer and used THQ parts. Seems okay so far but shocks are a bit more important I think. Theyíre pretty cheap and for a lightly used spare vehicle I donít want to waste money on heavy duty parts, but I also donít want to waste money on false economy cheap junk either. I like the look and sound of the Bilsteins, but feel like thatís just overkill for the amount the truck gets used

2. Springs or no springs? Quick struts are easy to replace, but do the springs really need replacing? Do they wear out or is it just better to reuse the OEMs. Other than the time to install is there any other benefit

3. Regarding springs, Iíve read that the cheap Harbor Freight compressors are not up to the job and that heavy duty set should be used. Can anyone recommend a HD compressor set? What makes it HD - what specs should I look for when shopping

Thanks for reading. Hope they werenít (completely) stupid questions.

Cheers
mm66
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  #2  
Old 04-18-2019, 04:46 AM
John in RI's Avatar
John in RI John in RI is offline
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2005 BowTie TrailBlazer LT
Olympic White '50U' 4.2L I6 4X4
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Buy fully assembled Struts/springs,...... cheap enough to justify the lack of aggravation to re-load the used springs on new struts. Swapping springs is simple enough - but the minor added expense of buying "quickstruts" is worth it IMO.

I've swapped struts in several cars/trucks and have done the trailblazer set-up 4-5 times. Last summer 1 of my sons buddys needed some help with a blown strut at the strut tower. I told him to buy "fully loaded" fronts but he ( as a kid ) was thinking about spending as little as possible and brought me bare struts. That was the LAST time I will ever re-install used springs when replacing front struts !

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Old 04-18-2019, 03:50 PM
madmac66 madmac66 is offline
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2007 Chevy TrailBlazer LT
Silver Mist Metallic 4.2L I6 4X4
Join Date: Mar 2015
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Posts: 16
Thanks John. Took your advice and found a set of Monroe front struts on Amazon for a good price. Hope it turns out to be a good deal, and not too good to be true. They were $200 cheaper than same model on 1aauto. Go figure. Rear KYBs were half the price on Amazon too.

Anyway, having shopped around for a decent heavy duty spring compressor I figured it wasnít worth the hassle. Iím from the motorcycle world where suspension is completely rebuildable. Not used to just throwing an entire unit away

Cheers
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  #4  
Old 04-30-2019, 07:29 PM
madmac66 madmac66 is offline
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2007 Chevy TrailBlazer LT
Silver Mist Metallic 4.2L I6 4X4
Join Date: Mar 2015
Location: Fullerton, CA
Posts: 16
Finished the job this weekend. Parts installed :
Monroe QuickStruts up front
KYB Excel shocks in the rear
Moog sway links in the rear

Torqued everything, back and front, and I mean everything. Even reinstalled some fasteners with thread lock.

Perfect smooth firm ride, no clunk, no squeak. Easy as.

Ready for the road trip to Yellowstone next month
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Old 05-01-2019, 01:32 AM
John in RI's Avatar
John in RI John in RI is offline
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2005 BowTie TrailBlazer LT
Olympic White '50U' 4.2L I6 4X4
Join Date: Aug 2018
Location: Greene, RI
Posts: 104
Your not ready quite yet,..... I don't see a wheel alignment on that list! One of those things that you really *should* do after all that front end work.

If there's 1 part I've had fail more than any other in the front end it's the damn end-links !! I've worn out more than a couple sets of those things in the 2 Trailblazers I've owned !

Sure is a nice ride after installing so much suspension stuff. New struts/springs usually = No more bouncing front end / steering wheel after traveling over bumps !

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Old 06-19-2019, 02:11 AM
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ben_cline ben_cline is offline
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Quote:
Originally Posted by madmac66 View Post
Finished the job this weekend. Parts installed :

Monroe QuickStruts up front

KYB Excel shocks in the rear

Moog sway links in the rear



Torqued everything, back and front, and I mean everything. Even reinstalled some fasteners with thread lock.



Perfect smooth firm ride, no clunk, no squeak. Easy as.



Ready for the road trip to Yellowstone next month
It's getting nicer here recently. I assume you've already come and gone? I'm here in Belgrade, MT, near Bozeman.

Sent from my Moto G (5) Plus using Tapatalk
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