Yo, 'dude...
You were saying that the yellow YJ's
square tube links weren't too great.

I'm still trying to figure out what to do w/ making some susp. arms for mine.

Is his set-up bad cuz of the box tube or what? His looked pretty damn stout.

But I was also scheming w/ using some tubing from Avalanche or something w/ heims.

There are so many damn homebrew suspensions in the archives I'm trying to narrow down my "search".

Bigdude a suspension know-it-all?:confused: ....BWAHAHAHAHAhahahahahahahaaaaa


...:flipoff2:

Listen newbie there is no way anyone can teach you how to build a functional link and coil setup in a single forum thread. You need to search and search and search some more.

Since I am not Bigdude and wasn't there I can't tell you want the specific issue with that rig was but I will say the more you learn about them the more booty fab you will find.

Don't just search here either.

well...
that's why i was asking him some specifics... as usual, other folks can usually contribute SOMETHING.

There is an issue he had w/ parts of a design I was considering. I want to know why that particular design isn't good. Before I go building some shit I wanna cover all the bases, FREAK.

Any problem with that?

I've searched on this topic for the last few weeks. There's a LOT of info. And I'm not expecting all my questions to be answered in a single thread. Just maybe one or two.

If you can't handle it, :flipoff2: I'm sorry... I happen to find this board pretty reliable in terms of these issues.

My question here is related to a specific TYPE of link design. He's familiar w/ it & I thought maybe some o' you other dudes might be too.



AND:
Bigdude a suspension know-it-all? ....BWAHAHAHAHAhahahahahahahaaaaa

I asked for Bigdude OR any suspension know-it-all. ;) ya hear?

What if somebody makes you some will you stop posting:flipoff2:

Originally posted by BrandonK
What if I make JEEP_TJ_FREAK come will you stop posting:flipoff2:

:eek:
uuhh....
that's between you two, man.
:flipoff2::flipoff2:

How the fuck do you expect anyone but Bigdude to help you with this with no pics? Not even a half assed explaintion of what this rig had. Draw some shit in mspaint man. With what you have given you could have just PMed him and I am sure he would have responded accordingly or at a minimum given you the vocabulary to ask a question with.

Originally posted by JEEP_TJ_FREAK
Draw some shit in mspaint man.

ha ha. right... mspaint would CERTAINLY make it more clear.

I'll scan some pics of his set-up & post 'em tomorrow... then maybe the non-bigdudes here can see what i'm talking about, since the 'dude seems to be AWOL

Ummm.....Bigdude does kinda sound like a know it all, but he's running leafs at all four corners, and bent ones at that, so I don't know if he's a link suspension expert or not. I think he probably just knows booty-fab when he sees it. I'm not expert in any rigths, but I'm also looking into the whole linky linky slinky slinky suspension stuff. Nothing wrong with square tube links, if the material is up to snuff. I'm thinking of sleeving my lowers with square tubing for pure bashability, but they will be constructed of 1.75x0.375 wall DOM to begin with, then maybe a sleeve of of 2x2x0.125 for shits and giggles, but I not sure on the weight, might be overkill. From the searching and searching and more searching I've done (that's the only good info this thread has porvided so far) I've come up with lots of little tips and tricks, but it is utimately up to you. I suggest a suspension dynameics book and a few quiet nights, then start looking at pics and comments. No two link setups are the same, but once you know what performance you DON'T want, you can figure out how to make it work the way you DO want.

I think you'll find that many of the older link setups are very poor in terms of rear steer, anti-squat, although they can drive off the end of a ramp. And just because something is poorly executed doesn't mean that nothing can be learned from it. Some very good (maybe they got lucky) suspension designs are holding together (barely) with some very poor fab skills.

Originally posted by Scout Dude
Bigdude a suspension know-it-all? ....BWAHAHAHAHAhahahahahahahaaaaa
...:flipoff2:

... pretty much what I was thinking. As if his tits ain't big enough, now you're inflating his head. :flipoff2:

cm "big ass" k

His design is one thing, his construction is what I call booty fab on.....

-links out of 1/2" wall 2x2 box (not necessary)
-a recessed area in the front links like this (for turning) ____----______
-Said "you can't run triangulated uppers to eliminate a trac-bar"
-A halo cage over the driver/passenger with no down legs
-I could go on..... but won't

All of these facts should push you away from copying things you saw. Also for the record I never claimed to be a suspension know it all, nothing is wrong with leafs at all four corners, My spring is about straight now thank you very much :flipoff2: , and I can tell booty fab when I see it

Originally posted by Kilby


:eek:
uuhh....
that's between you two, man.
:flipoff2::flipoff2: wow living out your fantasies on the PBB:shaking:

Here's something I drew a few weeks ago while avoiding work.
http://road-trip-mag.com/jeep/rearlinks.jpg
I was playing around w/ ideas to see if it would actually work... Having lower OR upper arms connected to the middle of the T-case skid & @ the axles stock points.

THEN... I see this guys setup over the weekend:
http://road-trip-mag.com/jeep/squarelink.jpg

What are some NON-booty ways of getting this done?

THIS shoulda been my first post.
FREAK... I apologize. :D

(for the record i'm not even considering the guy's cage... it's :rainbow: I know... I just noticed his rear suspension linkage & thought i might have been on to something w/ my napkin drawing)

I can't really make it out in the pic, but it looks like there are no lower links, just a triangulated link on top, please tell me there is a trac bar that I can't see, or that the upper links are out of sight and the lowers are what I am seeing.

Originally posted by 4Bangler
I can't really make it out in the pic, but it looks like there are no lower links, just a triangulated link on top, please tell me there is a trac bar that I can't see, or that the upper links are out of sight and the lowers are what I am seeing.

Yeah, there must be more that we can't see there...

:confused:

Now that I look at it again, I think that's all there is. What keeps that thing from ripping off on the first rock it comes to...?

Must be (would have to be) some sort of pretty heavy-duty link on the tip of that triangle.

It looked like his rear links were actually "y' shapes that connected to the axle at 2 points. What I was interested in is that they originated from the T-case skid & went back... Most triangulated arms I've seen have been the other way (they come to a point @ the diff).


I'm thinking about triangulating one set of arms (either upper or lower) & doing normal long arms for the others that use relatively stock mounting points, but still having both UCA's & LCA's. AND maintaining my rear track bar

As far as the triangulation goes...
Most people seem to do UPPER arms,
would it be stoopid to do the LOWER arms like my illustration suggests?

Originally posted by Kilby

I'm thinking about triangulating one set of arms (either upper or lower) & doing normal long arms for the others that use relatively stock mounting points, but still having both UCA's & LCA's. AND maintaining my rear track bar




Why would you bother triangulating your arms if your going to run a track bar?? Doesn't make sense. As for triangulating the lowers it can be done you just have to fab something on the xfercase crossmember.

http://www.beast40.com/JeepPictures/j336.jpg

Pic of my set-up, it is plenty stable and does not need a trac bar. (one of the main reasons people triangulate)

My mistake on the track bar,
beat me to the edit...
i suck at the internet or something,
i cut out a chunk of text...

(should say:
AND maintaining my rear track bar would not be necessary, would it?)


Hell... I shoulda just bought your rear axle from you & gone with your setup & saved me all this hassle.

I will be triangulating both upper and lower links, in a "XX" fashion, uppers meeting on top of the axle, lowers meeting below the t-case.

The yellow TJ sounds like more of a triangulated radius arm setup, if the "Y" link int the pic is attached at two points on the axle on each side, or bolted solidly to the axle, but with out another triangulated arm, or a trac bar, there's no way to keep teh axle under the Jeep, asuming he's go one big connection at the tip of that "Y" If there are two connections at the t-case end, then it's really just a radius arm setup with the arms angled in, it should still have a trac bar, but doesn't seem like it should work very well.

The God of Suspension thread has some good info in ti, if you get past all the chest thumping, also, search for posts by JohnnyJ, and a thread called something like "one more question for the suspension link gurus" or something like that. The link setup he build on Indy Jim's green scrambler is very close to what i plan, only I'll be 1/4 ellip cuz I think round springs were meant for ink pens and don't belong on a real Jeep.

well i guess i'm looking into a "W"
link set-up... with the lowers being /\ and
the uppers being \ /. Use a trak bar w/ this config or not?

I'll have to figure out how to make the mounting point @ the T-case stout enough for support, but small enough for clearance.

would welding a bar across the T-case skid, be TOTALLY "booty fab"? The stock skid has a little lip that could be used to hold a bar that the link mounts could attach to.

Lowers in a /\ and uppers in a \/ sounds like a XX to me, whether you go W, |\/|, |/\|, XX, or whatever, as long as you have enough triangulation to keep the axle centered under the vehicle, you won't need a trac bar.

Instead of doing the triangulated uppers and lowers, I am doing a 3 link. Wishbone uppers and triangulated lowers. It should allow for little rear steer. Any set up with straight links will have rear steer, the longer the links the less severe it is.

There is a TJ in the North West that runs this set-up I'll find some pics.


Edit: Kilby, yes you should have bought my rear axle, its set-up and ready to go.

Hey Kilby..sounds like you want to step into the next level of advancement...I'd search for the following terms: Anti-sqat, roll axis, 4-link, (Ah, crap, I just forgot the rest of them)...anyways, don't just search here..there is tons of info out there about this stuff. this will help you understand why you can an cannot run different links.

And Bigdude: wasn't laughing at you..I was laughing at someone thinking that you knew everything about link suspensions...I'm in the same boat: 4 leafs is all you need. However, at least I have a SR so I don't bend main leafs:flipoff2:

Looking at the picture it appears two other peices welded near the pumpkin tied into the V kinda like this


\ / \ /
\/ \/
\ /
\./


Hit the quote button and you can see it the way I actually drew it