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Leaking F55 Shock

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Old Sep 11, 2019 | 07:21 PM
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Default Leaking F55 Shock

Got under my 03 Vert today for the first time since purchase about 3 months ago. The driver side rear shock has a pretty significant leak. This is the F55 selective ride control system.

Based on the photos, do I need to look into replacing this shock? My intention is to keep the vehicle 100% stock, so I'll bite the bullet and shell out for a replacement F55. Do they need to be replaced in pairs (or, God forbid, on all 4 corners at the same time)?


Driver side rear

Passenger side rear
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Old Sep 11, 2019 | 07:27 PM
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Yes, absolutely needs replacement. And you can replace just one, but chances are the others aren't far behind.

F55 shocks are obnoxiously expensive and poor performers, but you do you.
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Old Sep 11, 2019 | 08:04 PM
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I replaced mine as they were needed.and the rears are not as expensive as the fronts. You should be around $350 to $450. They are not as uncommon as they once were so the price has come down somewhat.
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Old Sep 12, 2019 | 09:45 AM
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c6 z shocks dirt cheap and 10 zillion c5 owners use them
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Old Sep 12, 2019 | 06:32 PM
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Found a replacement for $385 at RockAuto so that’s the way I’m going for now.
Edit: also found at homedepot.com for $350 free shipping...

And it appears that AC Delco shocks now have a lifetime warranty so I can’t really go wrong...

Last edited by Tippmar; Sep 12, 2019 at 06:42 PM.
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Old Sep 13, 2019 | 01:17 PM
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nou're going to pay $350 plus install fees if you don't change it yourself for one shock? and in maybe a year the rest will leak? I have a black check I need you to sign as well hahaha

Last edited by jumpmanmb87; Sep 13, 2019 at 01:17 PM.
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Old Sep 13, 2019 | 01:33 PM
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Originally Posted by jumpmanmb87
nou're going to pay $350 plus install fees if you don't change it yourself for one shock? and in maybe a year the rest will leak? I have a black check I need you to sign as well hahaha
It's 3 bolts and about 20 minutes to install. And I'll deal with the rest when I have to.
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Old Sep 13, 2019 | 01:35 PM
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How is the leaking shock affecting the way the car drives. I have the F55 and my rear shocks have started to leak. The ride seems not to be affected so I have not replaced them yet. The lifetime warranty maybe makes it worthwhile to replace them now and may be good insurance.
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Old Sep 13, 2019 | 01:40 PM
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Originally Posted by Pdbrains
How is the leaking shock affecting the way the car drives. I have the F55 and my rear shocks have started to leak. The ride seems not to be affected so I have not replaced them yet. The lifetime warranty maybe makes it worthwhile to replace them now and may be good insurance.
Definitely rides a lot harder - the leak in that shock is significant - like dripping - so it was definitely time to replace. The other 3 are a little damp but not really leaking yet.
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Old Sep 13, 2019 | 05:47 PM
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Originally Posted by Pdbrains
How is the leaking shock affecting the way the car drives. I have the F55 and my rear shocks have started to leak. The ride seems not to be affected so I have not replaced them yet. The lifetime warranty maybe makes it worthwhile to replace them now and may be good insurance.
The thing about leaking shocks is that they rarely leak suddenly. Unless damaged externally, what you get is a slow degradation until eventually seals don't hold properly. This often takes 50-100k miles. You've been feeling a shock that gets worse and worse for fifteen years - gradually. When you swap to a fresh set, you'll feel an immediate difference. Of course, even more so if you swap to a different set.
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Old Sep 16, 2019 | 11:55 AM
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Completed the replacement of the leaky F55 shock last weekend, not a difficult job at all - just obnoxious trying to compress the replacement shock so you can fit it in place.

I believe the ride quality is considerably better than before - especially given that it was the driver side rear shock, which sits right behind me. I think it was worth the expense; others think it's a waste of money. In the end, I'm happy so that's all that matter to me!
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Old Sep 16, 2019 | 02:45 PM
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Oh, I should have mentioned compression. People recommend zip ties. I find ratchet straps to work WAY better. Makes compression of the shock a one minute job.
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Old Sep 16, 2019 | 06:05 PM
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Might want to take a close look at the ACDelco "Limited Lifetime Warranty"

I see it says that the warranty does NOT cover: "Products that are replaced as part of normal maintenance or wear out."

page 1 at the very bottom.................

http://www.rockauto.com/genImages/30...pril2018_2.pdf

Jim
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Old Sep 16, 2019 | 07:27 PM
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Shock absorbers aren’t a wear item (like a wiper blade) and aren’t replaced during normal maintenance (like an oil filter)...

Originally Posted by jrprich
Might want to take a close look at the ACDelco "Limited Lifetime Warranty"

I see it says that the warranty does NOT cover: "Products that are replaced as part of normal maintenance or wear out."

page 1 at the very bottom.................

http://www.rockauto.com/genImages/30...pril2018_2.pdf

Jim
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