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Energy Suspension spring isolator part #?

RCWD21

By RCWD21,
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RCWD21 NPORA Old-Timer

RCWD21

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Does anyone know what the part number is for the energy suspension coil spring isolators for the wd21 springs? I've looked and looked some more and can't find a definitive answer. I see one mention of 15.6103 but that's it. Does anyone know for sure? I want to know the number incase I need to replace the isolators when I do my lift, other wise I'll just grab a bunch from the junkyard.

 

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RCWD21
NPORA Old-Timer

RCWD21

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Does anyone happen to know the part number? I've continued to search and even contacted ES and they say there isn't a product that matches what I need but I know there is.

 

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RCWD21
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RCWD21

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I gave them the measurements of a replacement spring I had in front of me and they said they didn't have anything that woukd work. I know people have gotten their isolators before, I just can't find the definite part number everyone has used.

 

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hawairish NPORA Old-Timer

hawairish

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Was that 15.6103 reference from one of my posts? I have that exact p/n, but it was for the pigtail on 4th Gen 4Runner springs mocked up for my R50. What dimensions you got?

 

Isn't there some Jeep spring that fits WD21 without modification? Maybe see if there's an isolator for that. Tried Prothane?

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RCWD21
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RCWD21

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I don't think that number was from one of your posts but I'm not 100% sure. And I'm planning on using JGC springs with the pigtail bent out in the rear for my lift in a few weeks when my control arms come in.

 

I haven't tried prothane yet but I may have to.

 

The measurements I gave ES were for a set of replacement springs that measure 4.07in ID with a coil size of .56 in. So I'd assume the OD would be 4.63in?

 

It's the Moog CC247 springs I used for measurements.

 

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hawairish NPORA Old-Timer

hawairish

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This is for use as an upper isolator, correct? I thought the lower was just a rubber sleeve on the bottom wrap, but correct me if wrong.

 

Given those dimensions (btw, the OD would be 2x coil size + ID, so 5.19"), and presuming it is for the upper isolator, I would think these would fit:

 

ES_isolators.jpg

 

The 1st and 3rd ones would snug up on the springs perfectly; only difference is the 3rd one is .25" thicker. 2nd would be a little snug but surely doable. The rest of the dimensions are basically the same. As long as "A" fits over the center of the coil bucket (presuming it's <3.75" OD), these ought to work. And if so, I'd think #1 would be the best option, since it would probably conform to the bucket better (being thinner).

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RCWD21
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RCWD21

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That's exactly what I was trying to find and also why I wasn't able to find anything..

 

As for upper or lowers I'm not exactly sure. I may not even need to replace them but I wanted to know what to order in case they were bad. I don't know what the difference is between the uppers and lowers since I've left suspension for last.

 

I'll me checking on them tomorrow when I crawl under there and assess the rust around a body mount (not sure how to go about fixing that) but those are the numbers I was looking for. I knew they started with a 9 but I guess my math wasn't adding up with too much on my brain and that's where I went wrong. Thanks for finding that for me!

 

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hawairish NPORA Old-Timer

hawairish

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As for upper or lowers I'm not exactly sure. I may not even need to replace them but I wanted to know what to order in case they were bad. I don't know what the difference is between the uppers and lowers since I've left suspension for last.

 

If they're anything like the R50 (and I suspect they are), there really isn't a lower isolator, per se. The perches on the axle pretty much fit the spring end closely, and the final wrap of the spring just has some sort of plastic/rubber liner that prevents metal-metal contact. Normally if that piece can be removed from the current spring in one piece, it can be re-used on the new spring.

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RCWD21
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RCWD21

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Couldn't I just use a durable hose of some sort to fit over the lower most ring of the coil to act as an isolator if that's the case?

 

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