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Old 05-14-2008, 10:57 AM
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Default How can you tell if your springs are original?

Wondering if the leaf springs on my FJ40 are the original set. The previous owner thought they were, but I'm curious if there is any definitive way to figure out if these are Toyota springs. I can tell that some suspension work has been done on the truck based on broken bolts, air shocks, extended rear shackles, etc..

Are there markings of some kind that I should look for?
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Old 05-14-2008, 11:34 AM
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The only mark I have ever seen on a stock set of springs was the Mitsubishi logo. No idea why though...
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Old 05-14-2008, 11:36 AM
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Quote:
Originally Posted by Jacket View Post
Are there markings of some kind that I should look for?
Maybe look for bumper scrape marks when you back out of the driveway?
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Old 05-14-2008, 11:37 AM
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three diamonds in the top spring. looks like mistu logo.
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Old 05-14-2008, 12:12 PM
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How badly do they sag? Really bad? Yep, they're original.
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Old 05-14-2008, 05:41 PM
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How badly do they sag? Really bad? Yep, they're original.
Heh. Or Pinnacle. Ask Ige :-)

Seriously, as a quick and dirty check, there will be 7 leaves in the front packs and 6 in the rears. There will be military wraps at the non shackle (inside) ends, and the leaf retainers look different from many aftermarket retainers.
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Old 05-14-2008, 05:44 PM
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Photos of the 72 that was for sale which I took some photos of show what the stock spring packs look like:
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Old 05-14-2008, 08:49 PM
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You know - these are in pretty good shape, decent arc, reasonable support. I think they still have some life left in them. I couldn't find the "Mitsubishi diamonds", but the PO applied some kind of black coating to the entire underneath, so its tough to say. But the counts that Jeff provided match up (7 front; 6 rears), and my Ubolt plates look a lot like the picture, except that my shock mounts are at the bottom of the UBolt plates.

I'll clean them up and see what else I can find.
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Old 05-14-2008, 09:22 PM
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Matt- Are you not installing the lift springs anymore?

Drew
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Old 05-14-2008, 10:17 PM
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I still am. The new OME's are in on the rear axle, and the old front springs are out - waiting for some time to finish up the front. But I was looking at the old front leafs, and trying to find any markings that would indicate they were OEM.

I don't want to discard any original parts as long as I have the truck.
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