Bilstein 4600 vs 5100 shocks. Which rides softer? - JeepForum.com
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Unread 08-21-2014, 03:22 AM   #1
Charley3
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Bilstein 4600 vs 5100 shocks. Which rides softer?

I have 1.25" lift front and rear (after 2 years spring settling).

I have considered shock lengths and I could use either 4600 or 5100 shocks. Which would ride softer? Has anyone tried both?

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Unread 08-21-2014, 10:28 AM   #2
pismo61
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If the 4600s are yellow,they seemed stiffer to me.Had both on a TJ.The yellows were on a stock suspension and the silver 5100s were on a 4 inch lift.
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Unread 08-21-2014, 01:36 PM   #3
Charley3
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Quote:
Originally Posted by pismo61 View Post
If the 4600s are yellow,they seemed stiffer to me.Had both on a TJ.The yellows were on a stock suspension and the silver 5100s were on a 4 inch lift.
Thanks. That's what I needed to know.

Yellow is 4600. Silver is 5100 (and other 5xxx).
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Unread 08-21-2014, 01:40 PM   #4
Charley3
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How firm were the silver ones? I need reasonable handling and control, but have a bad back. So I don't want to firm.

Anyone know how the Bilstein 5100 (silver) compare for on road ride comfort and handling to OME N35 and N36?
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Unread 08-21-2014, 02:55 PM   #5
pismo61
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I think the Bilsteins are a hi pressure gas shock and the OMEs are a low pressure gas shock.So I would think the Bilsteins would be firmer.
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Unread 08-21-2014, 06:19 PM   #6
Charley3
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Quote:
Originally Posted by pismo61 View Post
I think the Bilsteins are a hi pressure gas shock and the OMEs are a low pressure gas shock.So I would think the Bilsteins would be firmer.
Don't know what pressure the N35 & N36 OME are. I should say "were" since OME discontinued all but their Sport shocks. The OME Sport shocks are miserably stiff IME.

Whatever pressure a gas shock is, that is only part of the ride. Valving matters a lot too.

So I'd be reluctant to guess at firmness based on gas pressure alone.
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Unread 08-22-2014, 10:42 PM   #7
Charley3
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I ordered Bilstein 5100 shocks. I found out for sure that they are a bit softer than Bilstein 4600. For Jeep anyway. I called Bilstein tech support and asked them

I need something slightly firmer and longer (for street handling and off road articulation) than XJ Sensa Trac shocks, but still soft enough for my bad back/comfort.

I hope the 5100 will be soft enough for my bad back. I know they'll handle good and are long enough for articulation.

Another option I just discovered is JK Sensa Trac front shocks. They'd probably be soft enough and firm enough. They are long enough. The price is right. JK Sensa Trac shocks are a bit firmer (valved for 30" tires, which I have) and longer than XJ Sensa Trac shocks I currently have.
JK rear shocks (valved for coil springs) are probably not good for an XJ (has leaf springs in rear).
My old favorite was XJ OME Comfort shocks, but they are discontinued. My next favorite was XJ OME standard shocks (N35 & N36), but those are also discontinued.

The only XJ shocks OME still offers are Sport shocks, but they are way to harsh.
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