King 2.5 Extended Travel has Violent Full Extension

Icon has a video on how to properly adjust your CO's. The main part is the hib to fender measurement when wheels on the ground and hub to fender when wheels in the air need to be a difference of about 2.5" or more. If it's less than 2.5", then the ride will be rough. Something to consider.

 

I’ll get some pictures and measurements today.

Regarding this I don’t know why I would of purchased 2k in suspension to level out the truck. Without the 3 turns it was a factory level.

I’m guessing I do have to much preload so I’ll fill in the blank information today

 

What is "factory level" ?

The generally accepted way to measure "lift" is to measure center of the hub to the bottom of the fender. If you are passed 23" for that measurement you are too high and need to bring that measurement back equal to or less than 23".

Preload isn't the monster people on here make it out to be, it mainly becomes an issue when you have so much that the coil goes into mechanical bind due to having less space to compress than the shock has available for travel......or you have so much lift you don't have enough down travel and you top out coming off of bumps. Keep in mind that aftermarket coils for our trucks have linear spring rates, they don't really "settle" and should feel consistent throughout travel regardless of preload.

Also check for interference, see if anything on your UCA could possibly be hitting your Coilovers, another source of interference is at the tie rods and coilover.

 

I have ADS coilovers set somewhere between 2.5 and 3.0 inch lift. I ended up adding limit straps, now I can go over speed bumps at any speed.

 

This.

Dial them back 1.5 turns.

The same thing happens with OME shocks and the longer 4Runner springs (787? I forget the number). Search the forum for OME "over speed bump goes bang" and you'll find lots of info.

 

honestly the sole purpose of 2k kings is not to achieve lift, its to have a better quality component one that can hold more oil to withstand that spanking of abuse running at speed

this is what i suspect the OP is dealing with

 

Interested in hearing/seeing more about this.

 

I have the same issue with my Kings but I have 700# Springs. Full Mobtown bumpers, skids, sliders and winch. No swaybar also.

A little harsh when tire loses contact and CO fully extends, not unbearable. I’m going to revalve them at some point soon.

 

10 inch straps, all hardware and straps made by Trail-Gear.

 

And you’re saying this stopped the hard clunking from going over bumps?

 

Yep, install the straps with plenty of adjustment left in the threaded section, jack the front of the truck off the ground til the front tires are off the ground then adjust and tighten the hardware on the limit straps to barely not let the coilovers fully extend. If the straps ever stretch you can adjust again. I welded a small plate on the frame before the mount to keep it from ripping a hole in the frame over time.

 

no there is absolutely no reason to run those on that setup

but hell what do I know....

 

The reason has been discussed.

 

I understand that part, but I just disagree

instead of a shock with too much pre load and no down travel causing a bang coming off speed bumps they are using a limit strap, further shortening their down travel and though in theory they are protecting their shock from binding and breaking, a limit strap is not kinetic I have a hard time accepting that using one would smooth things out

 

the proper fix would be to lower the truck so you dont top out the shock. but this will help "dampen" that top out. the top out of the strap is less harsh then the top out of the shock.

 

This. When my kings get a little above 2.5 inches they ride really harsh. Keep in mind that Kong’s have a sweet spot of 2-2.5 inches to where they are in balance and plush. At three inches you are pushing their threshold and stresses are getting introduced to the shock which are the same symptoms you are describing.

Lastly, understand with our trucks that at 3 inches in ride height you will burn out your diff bearing (sorry I forget the actual term for it) which will cause vibrations when this happens. If you stay at or under 2.5 inches then you can likely prevent this.

 

I agree with this. A limit strap on oem coils IMO is only reducing the travel on a shock that is designed to have a natural max out and still stay within a safe parameter. Further more, if the oem shocks really required limit straps then 90 percent of this forum would have broken trucks when they went off road.

Limit straps are needed to prevent the cvs from binding and when you deviate from factory suspension numbers (long travel) then you have to confirm the droop doesn’t affect the binding. I encourage any midtravel guys to jack up their truck to full droop and see if their axles bind...my guess is probably not.

 

The only reason to have limit straps on the front is running long travel to protect the CV, not the shock.

 

And as we have discussed here (with evidence of someone running this setup), it reduces the harshness of the top out. It might not be “required” but it sounds like it helps smooth out the harsh bumps.

 

Straps don’t smooth out the harshness, it’s entirely too subjective to debate anyway, it’s irrelevant.