Parabolic Suspension

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see:
http://www.wiseowlparts.com/

I put something up in the hardcore section, but forgot about your "two leaf" comment. The leaves are tapered along their length. Each leaf is about 15mm thick aat the axle and tapers down to ~5mm at each eye. From what I understood from ray wood, this enabled the leaves to flex twist along their length better than conventional parallel leaves.

Cheers,
Steve
 
Great Basin Rovers is the US retailer. These springs are freakin' awesome. There will be a review of them on a '64 FJ45 in the January Toyota Trials...you are a tlca member aren't you?

www/tlca.org if you're not...

I say it again-these springs are awesome! Lone caveat-if you want to run bigger than 33" tires, these are not your solution. They do make 1" over stock leaves that I really want to try in a spring over config....
 
i keep looking at these everytime someone brings them up, so i'll be anxiously awaiting the review in tt
 
I had a nice conversation with Ray Wood about these before the purchase... Ray is guy behind these, I believe. Anyway, they will give about 1.5" of lift, which is prefect for my father, he won't need more than a 31" tire.
 
Just a quick picture (they are hard to find) of one installed on a Rover....

new_springs2.jpg
 
so... since they dont offer much lift, would they then be good for a SOA? Or does anyone think they would they bend too easily?

-Dustin
 
Besides the leaves being spaced apart from each other so they only contact at the spring pad and eyes, they seem to be the same idea as was used on domestic fullsize p/u's front suspensions. A half ton chev also has two leaves, full length, thick in center but tapered towards the ends. They are flat instead of arched though, 47" long with centered pins. Put some shims between them and they'd be great for a low buck low soa. I think fords front springs were longer so they'd be worth a look. One tons used three leaves as well.
 
They are way cool. I am not sure if they would do well on a SOA; I doubt it. Well worth trying.
 
Cryptic said:
Besides the leaves being spaced apart from each other so they only contact at the spring pad and eyes, they seem to be the same idea as was used on domestic fullsize p/u's front suspensions. A half ton chev also has two leaves, full length, thick in center but tapered towards the ends. They are flat instead of arched though, 47" long with centered pins. Put some shims between them and they'd be great for a low buck low soa. I think fords front springs were longer so they'd be worth a look. One tons used three leaves as well.
Click to expand...

A guy I grew up with has a super-duty/f-250, and I noticed a few weeks ago the it has 2 leaves on the front. If a Ford SD can handle parabolics....
 
bump... where can you buy these in the US, or even So Cal?
 
TIC Parabolics

Sorry I haven't been paying attention. Are you a TLCA member? If so, you can read a full review of TIC parabolic springs installed on a 1965 FJ45 pup in Toyota Trails. If not, find a friend that is and borrow the Jan/Feb issue for a read, or go sign up and get the back issue:)

I got my springs from TIC Parabolics:
http://www.parabolicsuspension.com/toyota/lcruiser.htm
Great Basin Rovers is the US retailer. I tested 2.5" lift, but they are also available in a lower 1" lift that is well suited for Spring Over Axle configuration. The rears are available with an overload leaf if you carry tons of gear. These springs give a very Cadillac ride on the street, and flexed so hard out of the box we had to move front fender turn signal wires because the tires were grabbing them at full stuff-on the first day on the trail-which was the same day we mounted them. TIC says they will not sag over time either...

I'm putting together a group buy of these. They will ship to Great Basin Rovers, and you can have them shipped to you from there. PM me for pricing if you're interested.
 
Chef said:
I I tested 2.5" lift, but they are also available in a lower 1" lift that is well suited for Spring Over Axle configuration.
Click to expand...

How well do you think the 1" springs would hold up to a heavy SOA FJ60?
 
product update

You may remember in the article we had some problems installing tic springs on the early 1964 fj45 due to being supplied later model bushings.
Paul Heijstee emailed me to day with this in regards to the "wrong bushings problem" Erik and I had with the 1964 FJ45 install...I think this shows a great commitment to making sure the customer gets a quality product:

Alan,
I am aware of this so I designed and made special bushes to compensate = a
35 mm bush with smaller bolt hole and a small bush with the same hole. The
only thing I don't have is the early shackles and pins so you have to use
original.
So the bushes are a good plan and the shackles not.
Regards
Paul

-----Oorspronkelijk bericht-----
Van: Loshbaugh, Alan J. [mailto:LoshbaughA@missouri.edu]
Verzonden: zondag 6 februari 2005 16.36
Aan: Paul Heijstee - Parabolic Suspension
Onderwerp: RE: Alan Loshbaugh/fj45 springs pricing


Hey Paul, thanks for the info and pricing. I'm hesitant to buy shackles and
pins though, because remember this is a 1965 truck...we had some problems
with bushings last time, and I suspect we might with shackles and pins this
time as well? What are your thoughts on that?

thanks, Alan
 
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