2.5" suspension lift on top of 2" spacers? - Jeep Wrangler Forum
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Old 04-16-2013, 10:04 AM   #1
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2.5" suspension lift on top of 2" spacers?

Anyone know if this would be a huge mistake? I currently have the 2" spacers (stock everything else, PO was cheap), and I was wondering if I installed a 2.5" suspension lift using those as well if it would be unsafe or just plain stupid. Looking to run 32-33" BFG A/Ts.

Thanks

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Old 04-16-2013, 10:13 AM   #2
Knows a couple things...

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A 4.5" total suspension lift height is pretty huge, it will cause the drivetrain (rear driveshaft) angles to be so steep that the serious vibrations they will produce will be difficult to eliminate without investing in a SYE (slip yoke eliminator) kit and aftermarket CV driveshaft. If you're spending that much, you might as well do it right with 4" springs. Plus spacers on top of springs are never as good as a pure spring solution since spacers can encourage the spring to overcompress which damages it.

But with a simple 3" spring lift plus a 1" body lift, that would give the recommended 4" of clearance needed for offroad use of 33" tires without the expense of a SYE kit & CV driveshaft. Instead of the SYE & CV driveshaft, you could go with a much less expensive t-case drop kit and 1" MML (motor mount lift) to eliminate the less serious vibes that even a 3" spring lift will cause.

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Old 04-16-2013, 10:18 AM   #3
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big mistake & bad idea
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Old 04-16-2013, 10:24 AM   #4
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Never do a spacer lift with a suspension lift. Mine had that when I bought it and it was scary going down the road to say the least. I made the dealer I bought it from take it all off and put new stock stuff back. I figure I will do it right later.
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Old 04-16-2013, 10:32 AM   #5
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As stated above it is a bad idea. It will cause coil bind and premature coil wear and tear. It's ok to use a spacer in the front or rear (usually like a 0.5"-1") to accommodate for spring sag due to heavy accessories like bumpers, winches, tire carriers, etc. But that is only if you also properly adjust the bumpstops after you install the spacers. (i.e. trim spacer height has to be equal to the extra bumpstop extension on top of what you already have).
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Old 04-18-2013, 10:08 AM   #6
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I've been wondering the same thing (running spacers under 2" BDS coils). I even called BDS to see what they thought, and surprisingly the tech who I spoke with told me I shouldn't have any trouble running an inch to 1.5" spacers up front and back to accommodate for the winch and HD bumper I'm throwing on. BUT, I'm not sure how legit that is after reading some up on the topic on WF.
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Old 04-18-2013, 10:59 AM   #7
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Quote:
Originally Posted by 4xMike View Post
I've been wondering the same thing (running spacers under 2" BDS coils). I even called BDS to see what they thought, and surprisingly the tech who I spoke with told me I shouldn't have any trouble running an inch to 1.5" spacers up front and back to accommodate for the winch and HD bumper I'm throwing on. BUT, I'm not sure how legit that is after reading some up on the topic on WF.
Read what I said just above your post:
Quote:
Originally Posted by PStov98TJ View Post
As stated above it is a bad idea. It will cause coil bind and premature coil wear and tear. It's ok to use a spacer in the front or rear (usually like a 0.5"-1") to accommodate for spring sag due to heavy accessories like bumpers, winches, tire carriers, etc. But that is only if you also properly adjust the bumpstops after you install the spacers. (i.e. trim spacer height has to be equal to the extra bumpstop extension on top of what you already have).
It's ok to install them to compensate for loss of lift height due to accessories as long as you properly extend your bumpstops. Ideally if you add a ton of stuff that weighs down the jeep you'd just go buy some higher rated springs, but that's usually not possible right away, especially after you bought the accessories (you know what they say, "Just Empty Every Pocket"!! ). So spacers are fine to use just be judicious in your use of them and don't just throw them on there willy nilly like it'll all be honky dory.
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Old 04-18-2013, 11:02 AM   #8
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Originally Posted by 4xMike View Post
running an inch to 1.5" spacers up front and back to accommodate for the winch and HD bumper I'm throwing on.
if you want to compensate for a heavy winch and bumpers, spacers aren't going to solve the problem...they'll create new issues. adding heavy crap is a spring rate problem....

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