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BOSS Blown Coil Over

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Old 08-08-2015, 09:49 AM
  #21  
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Our Gen. 1 top mount was a static mount, the shock main shaft precisely fit through the top mount with washers top and bottom, and then was bolted down with the 19mm nut. Everything is fine if the shock goes up and down as it is supposed to. However, if you were to hit a large pot hole or bump hard enough the tire/wheel & lower control arm are driven violently backwards (the lower control arms have bushing that allow the LCA's to move)...it can shear the Boss main shaft under the hard mount top mount. This takes a pretty hard hit on something, but it has happened and we had to do something. We acted immediately to fix this issue, and for anyone that it did happen we replaced their Coilovers.

As with any company, we always want to improve, so we came up with Top mount Gen 2. We enlarged the main hole in the top mount then dished the top mount to accommodate large bushings top and bottom with cup washers to hold them in place. The result was fantastic. The shock when mounted in our Gen 2 top mount and the top mount in a vise...the shock can articulate from 10-2 without any troubles. Problem solved.

Last edited by HaloLifts; 08-08-2015 at 10:11 AM.
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Old 08-08-2015, 10:28 AM
  #22  
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Explanation makes perfect sense, Alex.


Adam
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Old 08-08-2015, 05:09 PM
  #23  
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Originally Posted by F150Lifts.com
Our Gen. 1 top mount was a static mount, the shock main shaft precisely fit through the top mount with washers top and bottom, and then was bolted down with the 19mm nut. Everything is fine if the shock goes up and down as it is supposed to. However, if you were to hit a large pot hole or bump hard enough the tire/wheel & lower control arm are driven violently backwards (the lower control arms have bushing that allow the LCA's to move)...it can shear the Boss main shaft under the hard mount top mount. This takes a pretty hard hit on something, but it has happened and we had to do something. We acted immediately to fix this issue, and for anyone that it did happen we replaced their Coilovers.

As with any company, we always want to improve, so we came up with Top mount Gen 2. We enlarged the main hole in the top mount then dished the top mount to accommodate large bushings top and bottom with cup washers to hold them in place. The result was fantastic. The shock when mounted in our Gen 2 top mount and the top mount in a vise...the shock can articulate from 10-2 without any troubles. Problem solved.
Thanks. I know there's no perfect piece of equipment out there with zero breakage. I appreciate the explination. Makes more sense to me now. I didn't realize the lower could move that much without distorting anything permanently.
Old 06-27-2017, 01:48 PM
  #24  
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I know this is a two year old thread but I just investigated a squeaking up front on the passenger side and have the same issue as the OP. Bottom washer has plowed through the shock rod and is now hanging below and truck front end is now uncontrollable when going over bumps in the road here in Pennsylvania.

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Old 06-27-2017, 03:16 PM
  #25  
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You need a new cup washer & bushing set. This is not the same issue as what was explained in post #21.

Alex

Last edited by HaloLifts; 06-28-2017 at 11:39 AM.
Old 06-27-2017, 03:17 PM
  #26  
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OK

Do you have a size or part number for the washers?
Old 06-27-2017, 08:01 PM
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It is more than a cup and washer. The shock is totally blown out after two years of street use. Shock is not pressurized anymore and only moves about 2" in and out with no dampening effect. No wonder the cup washer pushed over the rod, shock can't compress enough.

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