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Old 09-08-2004, 10:17 PM   #1 (permalink)
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Suspension Opinions

Aight, so I have a set of FJ 60 axles that Iím going to swap under my 40 and Iím trying to decide what I want to do.

universal things needed:

booster
master
d-shafts, prolly square front
Shocks

Option 1:

SUA front with 4 link and coils in rear, I think this would kick ass, low and flexy, I like the idea of being low, and I could prolly stuff 37's. I would flip the front springs and shoot for a 97-100" WB

Things needed:

Heims
tube
coils
Front springs

Option 2:

Stay with the heard and SOA with flipped springs

Things needed:

High Steer

I think Iím looking at about the same $ for both. Keep in mind I am a broke ass college student and my 40 is my only car. I think option 1 would be really cool and I think I could do one axle at a time. Get the first one ready to go, redo all the brakes and bolt it under with my current SUA setup. I realize the front is going to be a PITA to figure out the spring perches. After that I could design the 4 link and get the rear axle all ready to go and bolt it in, in a weekend (4 days )

Anyway just looking if anyone is adamantly opposed to this thought.
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Old 09-09-2004, 04:54 AM   #2 (permalink)
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I like SOA front and 4 link rear, but with all the outboarding, or knootching you need to do to make the 60 axle work in the front, you may want to SOA the rear and link the front.

Just a thought.
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Old 09-09-2004, 05:12 AM   #3 (permalink)
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even a cheap-ass rear link suspension like mine ran $500....but it worksgreat. You'll be hard pressed to get it installed and done in a long weekend....too many variables....and don't forget driveshaft work too...

SOA front is very flexy, and matches very nicely with the 1/4 ellip rear. SUA will not flex as nice.
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Old 09-09-2004, 06:46 AM   #4 (permalink)
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I am in the process of doing the FJ60 front under my 40...it makes it alot longer process than a normal SOA front if you don't outboard the front springs. I will post up some pictures later tonight if i get a chance.

Stew
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Old 09-09-2004, 07:11 AM   #5 (permalink)
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I would skip the SUA under the front as well, I don't think it will flex near as well as a SOA or coil....you could always SOA the whole beast at first to get the WB down and easily trail ready. Then work on the links and design of how you want to go...4 Link coils, 1/4 ellip....airbags....hydraullics...
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Old 09-09-2004, 07:14 AM   #6 (permalink)
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Leaf springs are gonna kill your approach & departure angles. I'd run a y-link w/coils & track bar in front & triangulated 4 link w/coils in the rear --> stretched wheelbase. Get yourself a rent-a-car cuz this ain't no 4 day turn around
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Old 09-09-2004, 10:27 AM   #7 (permalink)
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Thank you for your thoughts.

Here are some reasons Iím thinking of doing this
I have seen comp rigs with SU fronts and kick ass
Very stable, I really donít' like rolling
Low

As for approach angles, treerootís SU with flipped springs and without SR has very good approach with 37s

I don't know, if I do SO I have to buy hysteer and I really donít' feel like doing a cut and turn.

I don't want to deal with axle wrap issues of a SO rear.

Linking front and rear is actually a really good idea, Radius arms in front would be a piece of cake. I just don't want it too be too unstable. Thanks Nolan.

Thank you everyone Keep the thoughts coming
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Old 09-09-2004, 11:04 AM   #8 (permalink)
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Tuesday?
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Old 09-09-2004, 11:21 AM   #9 (permalink)
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Quote:
Originally Posted by bustanutley
Thank you for your thoughts.

Here are some reasons Iím thinking of doing this
I have seen comp rigs with SU fronts and kick ass
Very stable, I really donít' like rolling
Low

As for approach angles, treerootís SU with flipped springs and without SR has very good approach with 37s

I don't know, if I do SO I have to don't something to buy hysteer and I really donít' feel like doing a cut and turn.

I don't want to deal with axle wrap issues of a SO rear.

Linking front and rear is actually a really good idea, Radius arms in front would be a piece of cake. I just don't want it too be too unstable. Thanks Nolan.

Thank you everyone Keep the thoughts coming
There is no reason for a link suspension to be unstable if designed correctly and proper rates of springs are used.

Of course I am biased, and just finished building what I like.

Ed
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Old 09-09-2004, 11:34 AM   #10 (permalink)
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Quote:
As for approach angles, treerootís SU with flipped springs and without SR has very good approach with 37s
Old skool SU --> bad for ground clearance

Quote:
I don't know, if I do SO I have to don't something to buy hysteer and I really donít' feel like doing a cut and turn.
Stretch your front wheelbase so you don't have to deal with a cut & turn. Add a steering box with a forward facing pitman, trim the upper fenders front lip, mount the link brackets above the axle, & bend the links to increase ground clearance. All the bushings/heims are gonna set you back $$$ FYI. I just dumped over $500.00 for mine
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Old 09-09-2004, 12:57 PM   #11 (permalink)
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Quote:
Originally Posted by treerootCO
Tuesday?

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Old 09-09-2004, 03:34 PM   #12 (permalink)
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Quote:
Originally Posted by wngrog
knootching
WTF?!
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Old 09-09-2004, 03:36 PM   #13 (permalink)
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here's a thought:
what axles are in the 40 right now? what breakes?
how about you sell the 60 axles and use the cash to beef up the 40 axles?!
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Old 09-09-2004, 04:18 PM   #14 (permalink)
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My SOA setup seems more stable to me then my SUA setup did.

But I also went from Leaky Rancho 9000's to 5100's
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Old 09-09-2004, 05:42 PM   #15 (permalink)
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Quote:
Originally Posted by orangefj45
here's a thought:
what axles are in the 40 right now? what breakes?
how about you sell the 60 axles and use the cash to beef up the 40 axles?!
I have a 70 40, so I have drums all 4 corners. Basically I really REALLY need to get rid of the coarse spline birfs. I break them often, and I'm now on the last set of availability (thanks treeroot ) I have longfeilds but I can't rationalize doing a break swap with the 60 axles when I would rather just have them under the truck, being wider and all. So there leaves me a dilemma, I need to get the front axle under the truck soon, lots of break work to be done, and honestly kinda scares me a little (production date 12/69 = no booster single circuit brakes with 9 mm fittings)

I'm starting to lean back to just doing a spring over. I think it would the cheapest and I can't rationalize not doing it. I just donít' like how tall SO 40s are, so Iím going to do my best to keep it low if that is what Iím going to do. I'll prolly outboard the springs up front, i'm not sure if I'm confident tring to get those pearchs on top of the pumpkin.

I can get the axles ready to go, cut and turn I guess, get it all under the truck in a weekend and hopfully just be waiting for rear drive line.
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Old 09-09-2004, 07:27 PM   #16 (permalink)
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Steal parts off Magoo....that's what I do

I have no idea where Magoo's front driveshaft went
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Old 09-10-2004, 06:29 AM   #17 (permalink)
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treetroot...what ubolt flip is that?
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Old 09-10-2004, 08:13 AM   #18 (permalink)
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Here was a 40 I owned "briefly" last year...IMO it sat pretty low for SOA....this is on 33s that measure 31....
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Old 09-10-2004, 08:14 AM   #19 (permalink)
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here's how it sat next to the saggin' 62 and the stock 80...
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Old 09-10-2004, 04:45 PM   #20 (permalink)
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Quote:
Originally Posted by phishtaco
treetroot...what ubolt flip is that?
Treeroots u-bolt flip is from man it ain't free
http://www.man-a-fre.com/parts_acces...oltflipkit.htm

Thanks ben, that cruiser dosn't look too tall, little tall for my tastes, so I'll do what I cant to lower mine a little when and if I go that route, I"ll be 3" wider too though so that will be good.
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Old 09-11-2004, 03:08 AM   #21 (permalink)
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