For the rear springs we used Icons RXT multi rate leaf springs. The Icon springs are adjustable in ride height and rate, you can select 3 different spring rates and ride heights depending how you set up the stack on the springs.
There is a helper spring that gives a higher rate and a lot of resistance to bottoming. We decided that we wanted to run softer as running without the helper spring is still stiffer than stock. The RXT spring has more leaves in it than the stock spring stack. This resists wind up and helps reduce wheel hop, important with big tires, an LSD diff and big supercharged power.
For a smoother ride, less internal friction and less likelihood of squeaks, the Icon springs have plastic rub bearings in between the leaves.
These clamps can be removed so you can adjust the leaf springs for rate and ride height by changing the springs configuration.
The spring eyes are fully wrapped for strength in not just one, but two layers.
To prevent the rear suspension from slapping down and bottoming out hard, we used Icon’s hydraulic bumpstop option. The hydraulic bumpstop takes the place of the OEM rubber bumpstop and offers a controlled progressive hydraulic cushion to ease bottoming out and reduce the potential for damage on a hard hit or harsh landing. The bumpstop comes with a bracket to hold it to the frame and a pad for the bolts to the leaf spring to bottom out on.
8 comments
What the F**K??? I have kings on my white tundra rock warrior because of project tundra, now you’re telling me i need to drop a boat load of money on this?? Thanks a lot guys.
Kings are extremely good shocks but ours broke and we found out that their customer service was not the greatest. We simply cannot wait for 6 to 8 weeks just to get our trucks shocks looked at. I explained that our shocks had obviously defective springs but they were not concerned with that. They is nothing wrong with what you got, Kings perform really well. I just made the choice that I felt that after getting a nonplussed treatment for what was a techical issue, not abuse and since to get the truck fixed faster my only alternative was to buy new shocks, I decided to give my money to a different company and at the same time upgrade to a more hardcore system. To be fair, King makes shocks not suspension systems or packages and they do not sell anything off the shelf that is equvalant to the Icon system.
Funny, We had the opposite experience. The Icon struts we put on a 2015 Tacoma promptly blew the seals out and Icon couldn’t be bothered about it. Swapped to comparable Kings and haven’t had any problems out of them.
I actually just ordered all the parts to rebuild my Kings. Honestly never dealt directly with king but through Filtymotorsports which is one of their larger distributors. Great response and customer service. If I lived out west and could go flying through the desert when I wanted I would definitely be more interested in something like the icon setup, but in florida its dirt roads and rarely anything too hardcore. Your experience with the springs had me concerned so i ordered replacement parts just to be on the safe side.
I use the Camburg tubular upper control arms, same kings you guys have, and a 1.5″ rear lift shackle. Survived many salty winters in new england and lots of abuse. I’ve only replaced the UCA bushings (mainly because i went way too long without greasing them.)
The spring problem was bizarre, the spring suddenly shattered into over 20 small pieces just driving down the street! When changing arms, be careful and look to see if its going to affect bumpsteer. We drove a Camburg complete system and although it had a lot of travel, it also had a lot of bumpsteer which made it feel sketchy sometimes.
I guess dealing with a distributor is the way to go. The guy on the phone was most unhelpful and kurt just shy of being rude which annoyed me because I am a professional asking professional questions. Thus I decided to spend my money elsewhere even though I loved the product. Maybe the guy was just having a bad day but it left a bad taste in my mouth.
Their loss i suppose. FYI Camburg makes a few different types of control arms depending on your needs. they do make a long travel kit with extra long UCA/LCA’s. Mine are essentially the same dimensions as the factory ones but with a uniball located to give you more positive caster which allows for a much better return to center when you are on the throttle. The only negative impact i’ve found is more feedback due to the uniballs but it doesn’t bother me at all.
Bolt on, but some of the blots require an electrical arc generating wrench and the cutting wrench.