so.....

wishbone?
SA?
4 link?

for those of you that have coils, what are you runing? how do you like the setup? got any pix?

these ideas are for a buggy, so options are unlimited.
i am goin to run some stiff coils in the front (79 broncos) to keep the rig stable and have a 90 degree aproach angle, but i want sumpthin strong and flexy in the rear that will also give me a 90 degree aproach angle. i do not want to run 1/4 elip.

ant help would be great.

Dale

Ive got a TJ and got the 4 link now. Im redesigning my suspension for a wishbone upper and triangulated lowers.

If you are trying to get optimal ground clearence, you prolly dont want a triangulated lowers. Your best bet would be triangulated or wishbone uppers with parallel lowers.

You can check my buggy out at:

http://www.rightcoastcrawler.com/billaVista/Buggy/Buggy.htm

Seems to work quite well. But the top link in the rear, with the big tractor link joint is noisy as hell!

BillaVista

It looks good to me alot like others I have seen that work well simple and clean nothing fancy. I do have a question how much rear stear do you get?

Billavista-----i've got some ?? for you also.

on the wishbone---when its sitting level on the ground is yours pretty level?, I'm not getting as much flex as i should be after i put it in. right now i have leafs and i'm soon going to coilovers or just plain coils----what kid of coils did you use. that truck is almost exactly what mine is going to look like if i keep toyin w/ it.

theses are pics of my setup as it sits right now. im thinking i need to get rid of the leafs.

http://4x4.alloffroad.com/images/wishbone_top_rear(sm).jpg

http://4x4.alloffroad.com/images/wishbone_complete_rear2(sm).jpg

also do you know what size tubing you are running for that hoop over the axle? ia cant seem to keep it from breaking at the axle.


i think i saw a post where you bought that truck but i cant remeber, but if there's anything you can help me w/.

i like parallel lowers wishbone uppers with all bushings no heims, but thats cause i live in the land of mud and grit which eats heims.

Here's a link a 4-link on a Scrambler that a friend and I did. Uppers and lowers are triangulated (XX) with johnny joints on all ends. Very minimal rear steer. Limit straps to keep the coils from falling out, bending the shocks, and forcing the front to do some work.

http://www.pirate4x4.com/forum/showthread.php?s=&threadid=59312

Originally posted by 9V
i like parallel lowers wishbone uppers with all bushings no heims, but thats cause i live in the land of mud and grit which eats heims.

Thats my setup out back. :D

(Not nearly as clean as the one pictured above though :( )

I'll try and remember all the questions:

The loop over the diff is 2"x.025. It takes a lot of force. I developed a crack (blue arrow in pic below) and so just boxed it with some 1/4" (red arrow). Also - note the little tab welded to the link, and bolted to the diff casting (green arrow)

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4997.jpg

The wishbone is almost parallel to the ground -actually sits at 4-5* up at the frame end

As for rear steer - I'm not sure. Maybe you can tell from this pic:

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4937.jpg

I know I have no issues with how it works in the rocks / rough. And I can barrel down the fire roads at 40mph, but the suspension is so soft, and spooled front and rear - it's all over the place anyway - so hard to say what the exact culprit is??

The coils are 85 Chevy caprice in the rear and 69 El Camino in the front !

Here are some better pics:

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4991.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4992.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4993.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4995.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4996.jpg

Wishbone:rolleyes: How about DUAL TRIANGULATED 4-LINK ;)

Awsome--thanks----more??---do you have heims or bushings at the front of the wishbone---never mind----i saw the heims in the pics---fawkin newbie:D

I use a factory three link with rubber bushed trailing arms. Look under any rear of a land rover.

Check with RockRover, here is a half finished pic of his D-90.

Desertroy, is that what it's called? fawked if I know...looks like a wishbone to me :flipoff2:

I'll have to start saying that...makes me look better edumacated;)

The Wolf used to use rubber bushings, but it tore the hell out of them inno time flat. The spherical rod ends have been holding up much better, but NOISY!

No Billa, yours is wishbone. Desertoy's is double triangulated 4-link. As is mine. Love it, works great.

Originally posted by Slagburn
No Billa, yours is wishbone. Desertoy's is double triangulated 4-link. As is mine. Love it, works great.

COME AWN!

S&N fab


http://www.sn-fab.com/projects/Brett/roundy045.JPG

http://www.sn-fab.com/projects/Brett/roundy010.JPG

No Billa, yours is wishbone. Desertoy's is double triangulated 4-link

Oh, I see. Totally misunderstood his post. Thanks for clearing it up Slagburn.

I see a lot of folks lower links tend to converge, what's the reason for this?

I know, it's prob all been covered, but I figured I'd ask as we seem to be having a decent civil conversation here without too much crap flying (yet:) )

I went with that design to try and eliminate rear steer. Later after it was built I thought about the force applied through the lower arms not being in a straight line with the links themselves, but it hasn't been a problem. I certainly haven't noticed any rear steer out of it but I do have some slight axle swing from side to side under lots of flex. This push on the other hand generally pushes the body up hill and seems to help with sidehilling.
PIC: http://photos.yahoo.com/bc/jjacobs22/vwp?.dir=/CJ-5+4+link+rear&.src=ph&.dnm=PIC00016.jpg&.view=t&.done=http%3a//photos.yahoo.com/bc/jjacobs22/lst%3f%26.dir=/CJ-5%2b4%2blink%2brear%26.src=ph%26.view=t

damn that's a long link

Slag, are your upper and lower links parallel and equal length? Look like it from the pic

They are nearly parallel with the fronts 1/4" closer together vertically than the rear. The uppers are 4" longer. I have never calculated the exact antisquat but it could probably use a little more- on asphalt even my little 2-bbl 304 can smoke the 39.5's for a while, and I get a bit of bounce on steep climbs, but that could be spring rate. I also get a lot of driveshaft length change since the links are basically flat to the ground and the D/S is not.

Originally posted by BillaVista
I'll try and remember all the questions:

The loop over the diff is 2"x.025. It takes a lot of force. I developed a crack (blue arrow in pic below) and so just boxed it with some 1/4" (red arrow). Also - note the little tab welded to the link, and bolted to the diff casting (green arrow)

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4997.jpg

The wishbone is almost parallel to the ground -actually sits at 4-5* up at the frame end

As for rear steer - I'm not sure. Maybe you can tell from this pic:

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4937.jpg

I know I have no issues with how it works in the rocks / rough. And I can barrel down the fire roads at 40mph, but the suspension is so soft, and spooled front and rear - it's all over the place anyway - so hard to say what the exact culprit is??

The coils are 85 Chevy caprice in the rear and 69 El Camino in the front !

Here are some better pics:

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4991.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4992.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4993.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4995.jpg

http://www.rightcoastcrawler.com/billaVista/Buggy/Dcp_4996.jpg Where are your brakes?? I saw to different vehicals (red , OD green) I think. Neither one had brakes. Enlighten me please.

Where are your brakes?? I saw to different vehicals (red , OD green) I think. Neither one had brakes. Enlighten me please.

Rig was OD, just painted it red / black.

Brakes are on the front axle / on the shelf at the local parts place (working on rear disc swap for rear and hydro-boost)

Does anyone of some sketches or cad of 3 and four link setups?

I'm having trouble understanding why you would build a wishbone 3 link. iI doesnt seem to be any less work that doing a 4 link with parallel lowers and triangulated uppers.. does it work better, please enlighten me.



sorry to bring back an old thread... I completely spaced that I was doing a search and thought it was new

Scoobydann, IMO and from personal experience. Your hoop need to be reinforced. Gussit to the diff. housing. I have seen 2 setups beefier than yours get ripped right off the axle housing.