UCA's True Functions and Misconceptions | Toyota Aftermarket UCA Part 1

When do I need new UCA? Does UCA clear larger tires? Increase wheel travel? Increase strength? I will show you what exactly a UCA upgrade does and does not do. You will understand the principles and see the truth through misconceptions.
👍Support me by checking out the products I designed at tinkererdesign.com/
Link to Part 2: • Which UCA is Best for ...
Check out channel supporter Walls Outdoor Workwear: bit.ly/3JnvJEU
0:00 UCA Function
2:08 Wheel Alignment
6:06 Clear Larger Tires
10:20 Suspension Travel
13:27 UCA/Ball joint Strength

[@Ironman4x4America]

Good stuff, Kai. For clarification, Ironman 4x4 UCAs provide around 2 degrees of caster correction for 4 degrees of total caster capability. We'll update our website so that's more clear. Keep up the great videos!

[@TinkerersAdventure]

Thank you. I have pinned this comment so that the viewers will get a better idea!

[@robertespinoza2740]

@@TinkerersAdventure I have a 2015 tundra with 3 inch lift and 295/70r18 and my tires are close to the upper control arm will one of these help me with that ?

[@foxbodyfan0521]

I’m buying a new “used kit” this weekend and this answered my 1 major question as I plow with my truck so now I don’t have to worry about my cab mounts!

[@kenwilliams896]

@@robertespinoza2740 I run 35s on my iron man set up and love it, no issues

[@user-dt6cf4cf4m]

Can't find information about compatibility Ironman UCA and lift 3"?!

[@geepuller1]

This is such a great channel. Just factual content. Well spoken, well demonstrated. A class act.

[@JasonLee-lv7tm]

Y’all should get married

[@BookwormSkates]

This man is on a mission to educate me and I am here for it

[@ZachCheney]

These videos on Toyota suspension are the best! Keep up the great work! Your killing it

[@chriswhitehouse9764]

Excellent review and simple description of the technology and geometry issues we need to be aware of. Very well done!!

[@zixiaoliang]

11 seconds in and already into the details! love it!

[@joshuabriggs7114]

Your conveyance of system function and integration is excellent! Thank you for the great videos!

[@roberthohlfelder9780]

Once again, you've released a video that is a masterpiece of technical communication.

[@juanmarquez1443]

Finally a video that actually explains things thoroughly and with a lot of visual aids. Thank you for the in depth information!

[@gammaboxer9765]

This man is the future, thank you for all the work you put into these videos. Cheers

[@StephenJohnson-jb7xe]

I am not even planning on doing any mods but I loved this for the clear and in depth information and the extremely good presentation.

[@crawdaddy14]

By far the best informative explanation I've seen on the topic. Awesome job!

[@rc7074]

Don't ever stop! This channel is by far the most informative and concise knowledge base on KZbin for toyota 4x4s. I'm building a gx460 overlander and this has been a huge help.

[@sergiolopez-tf4ef]

Your content is honestly some of the most informative stuff i have ever ran into to

[@grantsims1729]

really appreciate the in depth "why & how" about alignment and control arm movements. thanks!!

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I'm not much of an offroading enthusiast, but your detailed technical analysis has earned you my sub. Very few discuss suspension geometry to this extent. Love it. Also, I soon aspire to your winter coverall game. Good choice!

[@mikhailtrotominz7662]

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[@candidcapture]

I can't express well enough my extreme gratitude for you sharing your knowledge and taking the time to put these videos together. Many many Thanks!!!

[@jamiethomas8975]

God damn you are killing it with these videos! Clearly explained with great demonstrations, you're quickly becoming one of the most informative channels for Toyota suspension and suspension in general! Keep up the amazing work man!

[@DaleRussell-fo4zv]

Best explanation of how UCAs work that I have seen. Thanks for doing this!

[@timbrown9760]

Another great explanation! I took my 4Runner to three different alignment shops before finding one that truly understood how to set up the SPC uca’s!

[@jamesgonzalez2081]

I love everything about this guy !!!! How he speaks The no nonsense straight to it style

[@FJX2000_Productions]

As always, amazing work!! Thanks for the research and hands on discovery you do to debunk all these myths!

[@hjstrater]

Again, amazingly well presented content. The practical demonstration of your talking points makes the information so easy to follow. You deserve the sponsorship!

[@barrettgrown3900]

Channels like yours are the ones I spend hours looking for. You gained another subscriber brother. Keep up the quality content. 👌

[@TrevorDyck]

Amazingly informative and easy to understand, as always! Thanks, Kai.

[@bougiebum9138]

This is simply amazing content. I love that there is fake personality or whacky sound effects... I love that you don't cram loads of dumb jokes and filler that we have to skip through to look for the nuggets of information we came for. This content is full of information I didn't know I didn't know, from beginning to end. This is the best. Thank you for your service 🙏

[@muttnimol7903]

All the videos have always been very clear and logical to understand.

[@TheGruffness]

Just stumbled upon this channel and I’m so glad I did. Thanks for sharing knowledge

[@alvee522]

Been watching UCA vids all day. FINALLY..the best explanation and display of suspension parameters. Thank you!

[@madcratebuilder]

Tip of the hat to Walls! This is the best, most factual info on YT.

[@itsame4002]

best truck video ever made, seriously. I've never heard such a thorough explanation, love it!!! thank you

[@mattyboy6484]

Great explanation of UCA, purpose and function as well as some idea of what to look for when considering lift.

[@tjeff8439]

One of the best videos on this subject I've seen!

[@mitchellbaxter2890]

You have an exceptional wealth of knowledge mate, your explanations are thorough and logical to follow too. Some great information is shared in your videos and they are greatly appreciated! Keep up the great work mate👍🏽

[@evolusd]

Your analysis is so good, keep it up!

[@marathonbaker]

Perfect timing, just started researching lift kit for my 21 tundra

[@elevatedtactics2464]

Great Video! I need new UCAs and it was eye opening to hear your discussion over high caster.

[@rlenoxIII]

Wow! This has got to be one of the best technical explanations I’ve seen on the front end since I graduated from college. You got yourself a new subscriber, keep up the excellent work 👍

[@mikedavis5931]

Great content! I’ve watched all your vids and it’s helped me have a much better understanding of Toyota IFS. Thank you!

[@chuckr7871]

Wow, finally a very good explanation geometry and dynamic forces applied to suspension components. Very informative video.

[@nickgmiller04]

excellent work for new guy trying to sort out a gx470 lift

[@GR1MKA1]

Just stumbled upon your channel. I don't even have a toyota but your videos are so informative I really enjoy them.

[@JayTdub13]

Great video! I’ve got a basic lift on my 5th gen T4r. 5100s set to 1.75, stock springs, 1 in spacer in the rear. I’ve often wondered these things you’re covering. I’m just getting into the 4x4 world. Thanks!

[@_skadoozh]

This is what happen if you listen to class. Well done! So informative 👏🏼

[@danielenicetto8206]

Found out your channel about 2 hrs ago and saw every video in a row. Since you love travel so much hope you're happy about your video travelling to an italian entusiast. Here nobody have ifs and nobody knows anything about that, everyone is about solid axle. You're like a saviour to me!! Hope you'll make a vid about spring rate calculation and shock absorber calculation for ifs. And again...thnx a lot!!

[@blakebaumgart8259]

Such great videos Kai! Keep up the good work. I have to correct technicians all the time and refer them to your videos to eliminate common 4runner misconceptions haha

[@LyonsLeo]

The most informative UCA video I've seen. Well done!

[@gtrboy318]

Great video, please continue to make these. You've helped me substantially!

[@g.fortin3228]

Boom ! Your explanations are well done and I love the information you are providing through your channel !! I'm taking my time doing some upgrades and it's great to know the details before. So far only 5100's for suspension. (Set at .85" fr. just to level up a bit) Tires are next. Thank you for the insights so much :- )

[@Heavy-C]

So glad I found this channel. Nice job on this content.

[@mudslide13]

Super informative! I don't know how this is the first video of yours I've seen but looking forward to more.

[@davidwayne9982]

THANK YOU very much for this EXCELLENT video... GREAT INFO- and stuff I've wondered about for a long time. I'm having eye surgeries and reading through a bunch of stuff explaining all this would hurt my eyes and make me physically sick- but to watch this-- is GREAT-- super good info- exact and to the point with NO FLUFF and windy bs as many would do-- tHANKS GREAT JOB.

[@elic.2443]

You're awesome! Thanks for being willing to share your expertise

[@adia6910]

This type of detail is insanely impressive

[@nanopotato420]

Thank you for your content! Iam so glad I found your channel.

[@amar.mohamed]

Your video is amazing. Straight and to the point!!

[@jimmytom8486]

I very love your video, great explanation and very clear. Thank you for your great work

[@dalemortensen1825]

Great video Kai. Your in-depth knowledge of functionality is truly impressive. Keep ‘em coming.

[@vigilteo9492]

Just wanted to say nice video after a lot of research and your video was very helpful I decided to go spc upper control arms and I’m very satisfied with the outcome it made all the difference in the world

[@tjman4943]

I just tripled my knowledge of UCAs watching this. Great stuff my man! Subscribed!

[@davis3561]

Wow Kai SUPERB!!! description and demonstration. Well done brother💫

[@danbayer9113]

Excellent information and proper amount of detail. Well done my friend!

[@JL-fly7]

Really really appreciate putting this great video together. ❤

[@roadtaco3924]

Great info you made it easy to follow. Thanks for sharing the knowledge.

[@ldooffroad1823]

Wow! Great job communicating such technical info. This is a great channel!

[@mitch2074]

I’m so thankful I found your video. I have a 22 Tacoma and I have been back and forth about getting UCAs when I’m only going to have 2-2.5” of lift on 5100s. I have been told many different things but nobody can explain anything or has tested their theories. I’ve been hovering over the checkout button, but you just saved me $700 lol. I appreciate the explanation. Definitely following you now. Look forward to watching more of your videos when I have the time. Thanks again.

[@FK-we1dp]

Thank you very much for these videos, Ting. A lot of engineering and math knowledge most people dont have even if they wanted to make a good video.

[@mitchld123]

love your work mate. Excellent content.

[@jvogler_art4708]

Bro your videos are a god send, i keep coming back because i wanna get like 11'' of usable travel on my 4runner and most people just care about clearing larger tires, i want to see those tires actually be able to articulate and safely maximize travel out of my stock lower control arms. So many choices but i think i'm gonna find the right setup thanks to you. I do think that yes the UCA may not bind with extended travel shock but what about CV? the CV angle might be too extreme.

[@ulehuleh]

This is an excellent video. Very thorough and knowledgeable, you answered all my questions. Looking forward to more videos

[@l.carroll9076]

Thanks for making this video. Seriously, it was incredibly helpful.

[@sj6986]

Love this guy. Shining the light on all sorts of off-roading modding myths and urban legends. RIP Pirate4x4.

[@BReVidy]

This guy just saved me over $800. Since i was on the fence about getting UCA on a low lift...i figured i would get a set anyway for peace of mind. Thanks for the reassurance of not needing it for my application. Answered all my questions pertaining to my setup

[@1Coolbanana]

Awesome, mate. I learn something every time with your videos, thanks

[@Juan-qq1rb]

Thank you professor. You saved me $800. Outstanding informative video.

[@Kiwigd]

Thanks Kai.. more really detailed content.. thanks for the deep dive!!

[@gianlucaalessia5538]

I've got a bronco but the info and content is fantastic! Thank you and keep it up!

[@jonathanhsu2345]

This video is exactly what I needed! Thank you for the informative video, I was sucked into my screen the entire time!

[@ThaiXLe]

My suspension IQ just increased 25pts. Thanks for such an informative video!!!

[@Druze_Tito]

It's amazing how many useful information you can find in this video. This channel is a tresure.

[@tourproto]

Fantastic video, you should have 1M subscribers! Love the way you explain things and integrate video that shows what you are explaining. Looking forward to future videos!

[@traviscovey1602]

Very informative! Thank you. I just bought a Tundra. I needed this video!

[@Liberty-Works1111]

Excellent detail...One of the best videos of its kind that I have seen... great Job!!! Also, the purple hat is Dope!

[@cjcowie72]

Great video thanks so much for the content as I did a 3 in lift on my tacoma with out changing the UCA's and killed my tires and control arms. Now I am putting a proper lift.

[@DavidRamirez-fe5dd]

Great. video. I love your answer " doesn't matter!"

[@JohnnychimpO907]

Another excellent video. Great work, Kai.

[@taco_timedqp4806]

Great video! you do a great job explaining vs others who just say "do this not that"

[@jose805t]

Just found your Chanel, very informative and everything was explained.

[@LekoOffRoad]

As always great explanation of how things actually work!!! Can't wait for next video :)

[@timricks1149]

This young man knows his stuff. Great informative video. You just earned a new subscriber

[@Seeyou006]

First 10sec of the first video I’ve ever watched. I heard, “ the universal why and how “ and knew this channel was for me . 🤘🏻

[@galagoproductions9672]

Amazing video, great level of detail, and excellent presentation. Subscribed. Thank you.

[@skateinspace]

the demonstrations really put it into perspective.

[@lonesomecricket7721]

Enjoyed this subject. Very well made. Thank you

[@SealHybridz]

Awesome video and great explanations! Keep it up! Watching from over the ditch in New Zealand

[@luisfarias2585]

Great stuff! I greatly appreciate you making this

[@NeBoFoRiOn]

easily the best vid there is and to understand on this stuff your vids are easy to watch

[@Rotativo25]

Great stuff! As always. Thank you for the education.

[@albertomendez1290]

dude! I have seen a lot but many videos looking for tips for my 4runner and believe me you are the best thanks for detailing and explaining step by step, I already have better ideas to lift my 4runner thank you very much, Alberto Mendez from Minneapolis