So if i understand this correctly, the pre-load spacer compresses the spring so that there is more force pushing the vehicle upward from the base of the strut. That alone causes no change to the suspension geometry in terms of rotation points or full-extension travel, but it does reduce the fully-compressed travel point by the width of the spacer. So a 1" spacer might reduce suspension travel from, say, 13" to 12". Is that correct?I'm sure the other mfg's have their reasons for doing it the way they did. But ICON is first and foremost a suspension company, not a "lift kit" company, so I'm confident our designers have their reasons for doing it this way. I will admit that I'm not as well versed in that specific question as I should be so I'll have a chat with those guys after the holiday and let you know what I find out.
But I can tell you what I know just as a lifelong off-roader who has been modifying and wheeling 4X4's for decades. The suspension geometry is the same regardless of where the "lift" is. coming from, if you haven't changed any of the suspension pivot points. CV angles don't care how the shocks are mounted...3" of lift affects that angle the same regardless, if you haven't moved any pivot points. The only way to get a certain amount of lift without affecting the CV angle the same is to use a portal. Same thing with steering. Unless you've moved the steering pivot points, the amount of lift affects it the same regardless of how that lift was achieved.
I will say that our kit uses a top spacer and a pre-load spacer on each strut, not a single spacer. The top spacer goes on top of the strut, below the strut mount. The pre-load spacer goes between the top of the spring and the underside of the top of the strut. So the amount of lift isn't entirely on top of the strut. I'll find out whether there is any performance benefit to this when I chat with the engineers next week. But I do know that it allowed us to make one part number that fits on all Bronco trims (some simply don't use the preload spacer at one end).
The kit doesn't care what size the tires are. But yes, control arms with improved range of motion will always be a benefit if you are operating at fulll extension of the suspension on a regular basis, i.e. going off-road a lot and flexing out to the maximum regularly, which may bring the OEM ball joints to their articulation limits (this isn't going to be as important for those who seldom go off-road but just want the space to run bigger tires on their grocery getters). ICON will have two Bronco front UCA's in our product line at some point, either billet or tubular, both with our high-angle Delta Joint instead of the OEM ball joint.So it shouldn’t need improved control arms for this kit with 37’s?
Yeah maybe I mistakenly took your question literally LOL...you asked:I'm sure I did. Sometimes I re-read too much.
Maybe he did not understand me either I used the spacer at the top term versus top, middle (spring perch) or bottom (LCA under shock). And even in his response, which I have re-read more than once, he said one spacer on top of upper mount and the other spacer is under the upper mount on top of the spring but last time I checked the would be the same as being "all" on top. But I guess that is just me. I mean we are only talking about the mount in between which might be an inch. Versus a perch spacer which is at the bottom of the spring or as I said earlier, the middle.
Either way we will see when he weighs back in here next week.
You wanted to know whether having all of the lift amount at the top of the shock versus splitting it up and putting some of the lift at the bottom of the shock resulted in other issues. My response was that it didn't matter. You were increasing the effective length of the shock at ride height, and where on the shock that extra length is placed makes no difference to the rest of the suspension and steering. They only care that it IS longer, not HOW it's longer.It has been noted in the other spacer lifts, that split it up, say it is to maintain cv angles and suspension geometry. Yours seem to buck that statement and I am curious why. I guess where I am going with this is if spacer is all at the top and all though the tires may not rub, or the suspension does not bind, does it put undo stress on another areas ??? Maybe in the area of the steering geometry Or maybe bind a cv at full droop with the wheel turned all the way in one direction.
Keeping them separate is for my benefit, not yours I'm also a member here as just a Bronco enthusiast, with my "Dusty" account that has been here since 2016. With that one I'm not acting as an ICON rep, and hopefully I can still just be myself when I use it LOL.it was obvious you work there so ...
That is amazing and any ETA like 2022 Q1 or just wait and see?The kit doesn't care what size the tires are. But yes, control arms with improved range of motion will always be a benefit if you are operating at fulll extension of the suspension on a regular basis, i.e. going off-road a lot and flexing out to the maximum regularly, which may bring the OEM ball joints to their articulation limits (this isn't going to be as important for those who seldom go off-road but just want the space to run bigger tires on their grocery getters). ICON will have two Bronco front UCA's in our product line at some point, either billet or tubular, both with our high-angle Delta Joint instead of the OEM ball joint.
I was curious about that too so I inquired. the 8-10 weeks is a canned response on all of our suspension components. But I have heard that these spacers should be shipping much sooner than that, like cut that estimate in half. I'm hesitant to give an exact ETA with supply chain and machine shop delays what they are these days.Just got this email from them. I hope its not 8-10 weeks.
Oh yeah I know! The SEMA stuff was exciting. I was just hoping for more ETA info, but thanks for the update regardless.That's our full coilover kit for Bronco. The prototype components in this pic were installed on our Bronco for SEMA so there's nothing secret about it at this point. But I can't even guess at an ETA for it.