Shock Absorber Question
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Mountain Pass
Joined: Jul 2016
Posts: 140
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Shock Absorber Question
I have a 2017 F350 6.7 with 63k miles, about 40k towing a 13k 5th wheel. I installed Rancho RS9000XL shocks at 5k miles. How long should I expect them to last? On a car, I can use jump on it to check, not so much on the truck. There does seem to be some bounce in the rear end while towing, but can't tell if it's the California cement roads of shocks not doing their job.
I know it's a hard question to answer, but any help wold be appreciated.
Thanks
I know it's a hard question to answer, but any help wold be appreciated.
Thanks
Mountain Pass
Joined: Jan 2023
Posts: 150
Likes: 10
I've had a pair of RS 9k's on My 00 Rodeo for over 15 yrs, and all I ever needed was to clean and free up a stuck valve. It is one of the few shocks that have been, mostly trouble free and is still in service. I love em Mike/EZ
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
Without a shock dyno, and most of us can't afford one, I really don't know of a good way to tell. I suppose you can buy a new one and push both down and see if they rise at the same rate or not.
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
Can you please explain that? Not sure how tire wear indicates shock wear.
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Mountain Pass
Joined: Jul 2018
Posts: 106
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I installed the same shocks on a 2012 F250 and they lasted 72,000 miles. Had one lose all the fluid and then the noise started.
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Cargo Master
Joined: Apr 2021
Posts: 2,588
Likes: 1,669
From: NW Wyoming USA
I would just ask Siri, she knows everything.
No but seriously I would inspect them for excessive leakage and if they are not leaking and the truck drivers ok I’d just keep running them.
You could also ask Rancho, but they’ll probably tell you to change them.
No but seriously I would inspect them for excessive leakage and if they are not leaking and the truck drivers ok I’d just keep running them.
You could also ask Rancho, but they’ll probably tell you to change them.
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
I've had shocks that do not leak but do not dampen like they should. Same car, different sides.
Cargo Master
Joined: Apr 2021
Posts: 2,588
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From: NW Wyoming USA
My experience is that tires will also cup if they aren’t rotated enough though. Especially mud tires.
Cargo Master
Joined: Apr 2021
Posts: 2,588
Likes: 1,669
From: NW Wyoming USA
Yeah, I replaced the stock shocks on my 2004 Silverado 2500 at 70k miles. I noticed that one of them wouldn’t fully extend. They never did leak and it drove fine. Installed Bilstein 5100’s and there was only slight almost unnoticeable difference.
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