As a side note, this is where your hub is mounted, and if you have 4wd, you need to have the outer stub of the CV in the hub at all times. If you are 2wd, you can buy replacement spindles that move the hubs down since there aren't any CVs to worry about, which is an easy way to get a lot of lift without changing the coilover itself. Spindle: When you push your truck offroad, it is very possible to bend your spindle, so there are a lot of people who weld on gussets to greatly enhance the strength of the spindle. LCA: Most people leave them alone, but if you opt for aftermarket options, some have mounts for bypasses and/or use beefed up joints. The difference is pretty minimal though, I believe it might be an inch max. Those are sealed so stuff can't get inside, but they typically don't get you quite as much travel as uniballs. The other option is the stock style ball joints. Uniballs are great for a little extra travel but are high maintenance, as they are exposed and tend to squeak a lot. UCA: As far as joints go, there are two main types. As far as I am aware, you are only supposed to use the stock length coil unless you are going long travel with longer coilovers. You seem to have a pretty good grasp on this stuff, but I might be able to add a couple of things.Ĭoilovers: When compressing the spring with clips or threads, you also change how stiff the ride is. I will update this thread with the knowledge, so hopefully others can find it useful. A diff drop kit can help mitigate this (according to strangers on the internet). Lifting your truck AND off-roading, well you just add additional wear and tear vs the stock design condition - not a big deal, but will wear faster. If you lift your truck, this puts them at an angle, adding stresses to the joint. At stock ride height they are close to level. ![]() Educate me.ĬV Axle and joints - this is what transfers power to the front wheels in 4x4. Serious off road people have opinions on these, but I have no idea. ![]() Sway Bar - some kind of control thingamajig. Steering - if you push out the track width, you'll need to extend the tie rods. Spindle - You can change the geometry of these, but again I'm uneducated LCA's - I don't know anything about these There's stuff about bearings and the joint, but I don't know anything about that at the moment. UCA's - enables caster angle adjustment, which basically allows the wheel to move fore and aft within the wheel well. Longer UCA's and LCA's enable longer downtravel, but start pushing out the front track width. UCA, LCA, and Spindle assembly - this defines the suspension geometry angles, and the arc of travel for the wheel. Tell me more about if changing spring length is a thing. For the tacoma owner, adjusting the position of the coil relative to the shock sets the ride height, and changing the spring rate changes the compression behavior (typically heavier spring rates for heavier front ends, if you're bolting a bunch of stuff to the front). The coil (or spring) compresses to absorb energy from bumps, and the shock acts as a damper to prevent that from happening too fast (resulting in a smoother ride). Next, as kind of a check on learning, here's how I understand how the components work, work together, and how to change them to achieve specific purposes (basically increase lift and travel)Ĭoil and shock - the most basic part of the suspension. Attached to the IFS is the steering tie rod, a sway bar, and in a 4x4, the CV axle. Or in less words I am uneducated, but fortunately not dumb or ignorant.Īnyways, to summarize the Tacoma's Independent Front Suspension (IFS)Ĭonsists of an A-Arm (or Upper Control Arm, UCA), B-Arm (or Lower Control Arm, LCA), Spring (or Coil), Shock, and spindle. ![]() If you have links to good sources of info, please share! Basically assume I know nothing about suspension, but am reasonably technically inclined, and willing to soak up as much knowledge as possible. Now I'm interested in learning and discussing the finer points of IFS, how to improve them for specific applications, and the tradeoffs involved. I've been reading a lot, here and on the internet in general, watched a couple youtube videos, etc. I'm looking to improve my understanding of suspension systems, specifically Tacoma suspensions, and the myriad ways to improve them (and break them).
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