What are Parabolic Springs? How do they work? 4x4 Suspension

We compare parabolic springs to leaf springs. We replace the original Toyota leaf springs with Terrain Tamer Parabolic Springs, in a Toyota 79 series Landcruiser 4x4. By the end of the video you will have a good understanding about parabolic springs and how they work.

Here at MadMatt 4wd there is everything from 4wd tips and tricks to fixing your four wheel drive. As a professional Four Wheel Driver I am all about educating and building the 4x4 community. If you are passionate about going bush with a 4x4 then this channel is for you. Enjoy and please subscribe & Hit the bell icon to be notified as soon as they're up!!!

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[Fix_It_Again_Tony]

Great point about a lack of friction in the spring pack requiring additional damping from the shocks. That's a detail most people would miss.

[benhowell]

That's the most informative vid I've seen on these springs, cheers Matt ya mad bastard!

[superdutyscaler]

Love how you guys down in Australia are improving leaf springs! I have a 1st generation Ford Super Duty, a 2004 F350 to be exact. Ford used parabolic front springs stock BUT every company in the states says they are junk and only offer multiple leaf packs as replacements. Wish they would follow Australian engineers and make upgraded parabolic springs for the Super Duty trucks. For now I'll jeep running my stock parts

[thewildlifetwins]

I just put parabolics all round on my 75 series. Love them to bits. Great video, I have been trying to explain them to people but I will just send them to this video instead. Haha

[jimbojones]

Sold. These will go on my 79 this year. Funny enough i have added 500kgs in the back with a full sized canopy! So i know these will work. Thanks Matt!

[Sl_king]

Nice video bro. After buying a 79 series all I think about how can I improve the ride quality. This video is very helpful

[Pereke]

Wow this channel awesome content bro, nobody talks and test like this

[shaddonaghue]

Awesome video mate, I didn’t realise parabolic springs were load carrying, so thanks for that i might look into them. Hopefully they make the for the 76 series 👍👍
Thanks for sharing

[leonbennett]

Awsome vid again Matt I will have to get me
A set of them in the 07 SR5 Hilux an flick the old style leafs

[shanevonharten]

Hope they're better quality than the Terrain Tamer coils and struts i had in my hilux. Absolute rubbish. Collapsed coils and busted strut bushes on very light work.

[chrisjakarta]

The military wrap @3:05 is gone @4:24 Thanks for the video. learned a lot

[jackfourbee]

Great vid once again.
P p parabolic 😁 keep up the good work

[nicksnicknet]

Cheers for this vid. You would think with less metal in them, they might be slightly cheaper than the regular leaf's - but that's not the case for my VDJ76R ;)

[nobrakes]

Drive it like you stole it
Lol
Cheers for the video bro very informative

[marty]

Ford Transit had front(single leafs) parabolic leafs back in the early 70s they been around a while. F250 have them as STD at around 1998. And yes they give the comfort of coils with strength and load carrying of multi leafs

[TheCheeekydog]

I know lots of bush vehicles are getting them put on here in the Alice as they are lasting heaps longer than the standard and yes they get flogged.

[Agent.K.]

Do a video on helper springs plz! Like the hellwig or ironman load plus.

[speedbird]

Wonderful,
You mean that the typical suspension springs which have the inter-spring layers friction prevent the required strain of the springs to minimize the impacts from bumps and jolts from the road, so the more the friction, the less we have spring displacement and the more the impact force is imparted to the cabin!
It seems this friction mechanism convert some of the impact energy to heat, but also prevent absorbing the total impact force so the remaining force is applied to the car structure!

[niceguy]

If the wonder spring compresses half as much under the same load then it can't be softer. Spring rates are not irrelevant. Even if the spring rate were variable (soft under light load, harder when compressed under heavy loads) they would not compress less, but more. It's always nice if spring rates are specified. OME do so but Terrain Tamer don''t even list recommended loads for their springs as far I can see.

[andrewkelk]

Great vid. Think I'll flick the diabolic standard springs in favour of the probolic springs and give it some anabolic steroid strength.