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Robeod
February 25th, 2006, 06:48 PM
I figured I would post the progress I've made with my 82 CJ7. A little background first. I purchased this jeep for $2000 back in 2002 while stationed in California, it was completely bone stock. I brought it home and stripped it down to the frame. I tossed the Iron Duke 4 cylinder for a Chevy fuel injected V8. Next came a SM420 trans mated to the Dana 300 t-case. I did a spring over and ended up with about 10" of lift which allowed the 37 x 12.5 MTR's to fit nicely. I ran the Rubicon and Fordyce several times with no major problems. I moved to Colorado in 2004 and the Jeep sat until a few weeks ago. I decided it was time for the ol' CJ to go back under the knife! I decided to go full width and coil overs, so off to the junkyard I went. I pulled a 14 bolt cause they are cheap and super tuff if you can deal with the huge diff. I also tossed the leaf springs for a custom 4-link. I will continue to post updates as I make more progress.

Before the operation
http://i41.photobucket.com/albums/e276/robeod/Jeep1.jpg

On the Rubicon
http://i41.photobucket.com/albums/e276/robeod/jeep6.jpg

14 Bolt all cleaned and painted, Poison Spider rock ring, 4 link tabs all welded on.
http://i41.photobucket.com/albums/e276/robeod/14Bolt.jpg

Disc Brake conversion from Great lakes offroad
http://i41.photobucket.com/albums/e276/robeod/brakes.jpg

I cut the fenders in rear to make room for the axel and tires
http://i41.photobucket.com/albums/e276/robeod/cut.jpg

Here are the 4 link attachments on the frame
http://i41.photobucket.com/albums/e276/robeod/4link.jpg

The new tires, 39.5 X 13.5 Irocs on 16" wheels
http://i41.photobucket.com/albums/e276/robeod/tires.jpg

4 link bars done and painted, 1.5" 0.250 wall tubing with weld in tube adapters
http://i41.photobucket.com/albums/e276/robeod/bars.jpg

Feel free to post comments or suggestions, more to come!

Rob

cjg004
February 26th, 2006, 08:03 AM
Looks great! I will enjoy following your progress.

Sprnklrmn
February 26th, 2006, 09:14 AM
I dig the paint rack; 1.5" .250 wall isn't strong enough for lower links with 40" tires and V-8 power.

pdrhound
February 26th, 2006, 09:47 AM
nice will you come do mine now?

Robeod
February 26th, 2006, 09:48 AM
I'm pretty sure I'm gonna sleeve the lowers, I wanted to get the lengths right first and then just got carried away with the paint.

Robeod
February 26th, 2006, 08:46 PM
Thanks for the positive comments guys! Here are some more pics. Not much done today (family time).

http://i41.photobucket.com/albums/e276/robeod/1.jpg

http://i41.photobucket.com/albums/e276/robeod/2.jpg

http://i41.photobucket.com/albums/e276/robeod/3.jpg

Went from 56" wms to 67.5" wms, the tires are almost completely outside the frame!

http://i41.photobucket.com/albums/e276/robeod/4.jpg

http://i41.photobucket.com/albums/e276/robeod/5.jpg

Almost time to start the front.

Getsome
February 26th, 2006, 09:46 PM
How did you decide on the length of the upper and lower control arms? I'm also wondering about the frame to frame bracket that you made for the 4 link. I'm going to guess that you made it out of???? Great looking build so far. Right now I just don't have the guts to 4 link my CJ.

Robeod
February 26th, 2006, 10:10 PM
Well I read alot on the net and found a pretty good article here:
http://www.4wheeloffroad.com/techarticles/suspension/131_0306_link/index.html
I also got a good starting point from another Jeep setup the way I wanted mine.
Also determined how far I wanted to push my axel back and where on the frame I could mount the brackets. The frame to frame brace you see is 2" square tube with 1.5" round tubing plug welded inside for strength. I know what you mean about the "guts" to build a 4 link, kind of a big step, if you don't chop the frame off like I did you can always go back to leaf springs if you don't like it.

Rob

crackhead
February 26th, 2006, 11:39 PM
I am most def not a 4 link guru, just have a question in http://i41.photobucket.com/albums/e276/robeod/2.jpg your uppers dont look centered on the axle.. why?? Looks like a stout Jeep though.. You out at Buckley?? me too..

Brian

sean@J-O
February 27th, 2006, 01:14 AM
theres some links to link calculators here:http://www.jeeps-offroad.com/showthread.php?t=19140

Robeod
February 27th, 2006, 06:06 AM
Crackhead, the links are dead centered. It's the diff that's not directly in the middle. That's the way 14 Bolts are setup. I got out of the military in 03 after 11 years, just working out here now.

Rob

Steven_Mc
February 27th, 2006, 01:46 PM
Looks great! I'll be starting a pretty similar build, hopefully soon (still collecting parts). Out of curiosity do you have the figures on your link setup? Length of the links, seperation, anti-squat, etc...

Robeod
February 27th, 2006, 05:30 PM
Steven, I can give you my link lengths and and seperation distances but all those numbers really depend on your C of G and instant center which is gonna be way different than mine. It also depends on how far back you want to push the rear axel. Lots of variables, tire size, estimated ride height to list a few. Let me know if you want some more info.

Rob

Steven_Mc
February 27th, 2006, 11:05 PM
Steven, I can give you my link lengths and and seperation distances but all those numbers really depend on your C of G and instant center which is gonna be way different than mine. It also depends on how far back you want to push the rear axel. Lots of variables, tire size, estimated ride height to list a few. Let me know if you want some more info.

Rob

I certainly understand that. At this point I'm trying to get a feel for different setups in essence to figure out how to use the infamous 4-link calculator and ultimately decide how I want to run my setup. All the numbers inter-relate and my setup while still 4-link will be totaly different, just trying to get a more detailed idea of the direction you went.

Thanks! :beer:

MGHay
February 28th, 2006, 05:07 AM
Looking good Rob, boy how plans change, huh. Looks like your gonna beat me but we should hook up and go wheeling when ours are done.
Gantt

Robeod
February 28th, 2006, 05:39 AM
Hey Gantt, you'll probably still have yours up before mine, I'm still debating which kidney I want to sell to pay for those coil-overs:confused:

Robeod
March 5th, 2006, 02:49 PM
I got the other tire on and trimmed the right side fender today. I hope to get atleast my rear coil-overs soon.

http://i41.photobucket.com/albums/e276/robeod/rear1.jpg

http://i41.photobucket.com/albums/e276/robeod/rear2.jpg

Robeod
March 14th, 2006, 07:52 PM
Ok, sorry for the delay. I decided to redo the rear frame link mounts. I saw this design on the net and decided I liked it alot better. It should be stronger too. The truss across the frame is 1 1/2" 1/4 wall sleaved with 1 3/4" 1/8 wall. I plan on trussing it after I get it all running and testd out. I did also sleave the lower control arms to make them stronger.
http://i41.photobucket.com/albums/e276/robeod/newupper1.jpg

http://i41.photobucket.com/albums/e276/robeod/newupper2.jpg

Jeffro600
March 14th, 2006, 11:54 PM
Lookin GREAT!!! :thumbsup: Ive always really dug the CJ7's!!

crackhead
March 15th, 2006, 02:25 AM
I did the same thing.. I got out after 9 years.. Where do you work?? Im behind the fence (unfortunately)...

Steven_Mc
March 15th, 2006, 07:21 AM
Ok, sorry for the delay. I decided to redo the rear frame link mounts. I saw this design on the net and decided I liked it alot better. It should be stronger too. The truss across the frame is 1 1/2" 1/4 wall sleaved with 1 3/4" 1/8 wall. I plan on trussing it after I get it all running and testd out. I did also sleave the lower control arms to make them stronger.

http://i41.photobucket.com/albums/e276/robeod/newupper2.jpg

What did you like better about it? Is there more stability in mounting the upper link heims in a horizontal fashion at the frame end? I've never heard of anyone quoting the truss as a weak point. What was the wall thickness on the square tube you were using for a truss originally?

At this point I'm reading everything I can find on 4-link, and I've seen a variety of people do it this way as well as the way you had it, but I haven't seen much of a debate on the benefit of each as it relates to the suspension geometry.

Keep up the good work, I can't wait to see it finished and hear how it performs on the trail.

Robeod
March 15th, 2006, 07:51 PM
I work out at the Former Lowery Bombing and Gunnery Range. It's over by Aurora Reservoir. We locate unexploded ordnance and blow it up.
The main reason I switched out the frame mounts is, the new way allows for more surface area to weld the tab to the frame. I also decided I needed to push the rear axel back a few more inches. By remounting the link I was able to move the axel back some without having to make new bars.

MyCJ4Rox
March 17th, 2006, 09:22 AM
Hey, I worked out there (Lowry BR) as well, for Black Hawk Geometrics, before I went to the RMA (FW) and then closed up RFETS (KH). BTW, your rear four link looks great...I did a 3 link with 14 coilovers on the front of my 76 CJ and its works super-well. Since you're with Shaw, call me sometime, as we probably have some mutual interests. Patrick 303-994-5660

J Kimmel
March 17th, 2006, 10:39 AM
brace the lower well. Orthrus had one out of .375 wall like that and it bent it and ripped it out in the middle of A-Hole. Long day of welding and re-contructing to get it out. There is a LOT of force on it!

Robeod
March 30th, 2006, 08:30 PM
Well I haven't done a whole lot lately. I finally found a 60 for the front. I mocked it up to see what my wheelbase was gonna look like.

http://i41.photobucket.com/albums/e276/robeod/axel.jpg

http://i41.photobucket.com/albums/e276/robeod/side1.jpg

http://i41.photobucket.com/albums/e276/robeod/front.jpg

I did a little more body work in the rear.

http://i41.photobucket.com/albums/e276/robeod/rear.jpg

I'm getting some tube bent on Sat to complete the frame, more to come!

98XJDMB
March 30th, 2006, 10:27 PM
that wheelbase looks darn near perfect, whats it at? and are you leaving that front bumper on there?

Robeod
March 30th, 2006, 10:42 PM
I'm not sure if I'll keep that bumper or build a new one. I may go to full hydro steering, chop most of the front frame off and tube it. Wheelbase is 108"

98XJDMB
March 30th, 2006, 10:47 PM
that would look really nice like that.. improve your approach angle.. doesn't look like you even have a departure angle in the back..grrrr wish i didn't have an XJ sometimes

Steven_Mc
April 14th, 2006, 09:48 AM
What's the latest? This thing rolling yet?

Robeod
April 17th, 2006, 08:57 PM
Well I haven't been working on the CJ much, this nice weather has me doing some outside work. I did get the rear frame completed, I'll post some pics this week. All I need is some weld in tube insets to start mocking up the front 4 link.

Robeod
May 28th, 2006, 06:56 PM
My work has sent me to Alaska for a while so no more work on the Jeep. Iv'e been here for 6 weeks now and will be home in 2 more. Stay tuned!

Steven_Mc
August 31st, 2006, 03:00 PM
How about now? Anything new?

Robeod
September 4th, 2006, 08:48 PM
Well I finally got the coilovers. I decided on the Bilstein RockCrawlers 9100's. I'm waiting on the top springs, didn't have the rate I needed, should be here this week.
http://i41.photobucket.com/albums/e276/robeod/jeep1.jpg

http://i41.photobucket.com/albums/e276/robeod/jeep2.jpg

Yes I know the fender isn't strong enough, there is a matching plate on top that ties into the roll cage.

http://i41.photobucket.com/albums/e276/robeod/jeep3.jpg

http://i41.photobucket.com/albums/e276/robeod/jeep4.jpg
The reservoir will be inside the tub mounted to the bar supporting the upper shock mount

Well I've worked all weekend and have caught the bug again so hopefully the front will be done soon.

snowman394
September 4th, 2006, 10:05 PM
thats a sweet tubed rear end. im attempting the same thing... i like the detailed steps you are showing. good luck.

Aaron

Steven_Mc
September 4th, 2006, 10:18 PM
Looks good. I'll be running the bilstein 9100's in my front, but only coils in the rear. The budget just doesn't allow for the rear coils. Got anymore details on how you completed the rear frame? It looks good, mine will have to be slightly more weight bearing since I'm mounting the coils to it, but still trying to decide how to finish it out.

Robeod
September 5th, 2006, 07:13 PM
I will post some more detailed pics of the rear frame tonight.

Robeod
September 5th, 2006, 09:13 PM
Ok here are a few more pics of the frame work. First pic is where I cut off the factory body mount perch and welded the roll bar tie in, also where the tubes connect to the frame. The tubes actually go inside the frame about 5 inches.

http://i41.photobucket.com/albums/e276/robeod/jeep5.jpg

http://i41.photobucket.com/albums/e276/robeod/jeep6-1.jpg

Robeod
September 13th, 2006, 11:03 PM
Thought you guys might wanna see what my CJ looked like the day I brought it home.

http://i41.photobucket.com/albums/e276/robeod/topoff1.jpg

http://i41.photobucket.com/albums/e276/robeod/jeep1-1.jpg

82'CJ7
September 14th, 2006, 09:45 AM
I like your cage. We also have a 82 CJ7 and are about to do a custom cage..could you send me some pics and if you have any measurments. Just trying to get ideas right now...thanks!!

Jen

MGHay
September 14th, 2006, 11:45 AM
work faster:flipoff2:

Robeod
September 14th, 2006, 07:28 PM
Almost done on the rear.

The cross brace looks in the way but the fuel cell sits just behind the bar so no real loss of space.

http://i41.photobucket.com/albums/e276/robeod/shocksupport.jpg

http://i41.photobucket.com/albums/e276/robeod/shocksupport2.jpg

I know you guys are tired of looking at my rear :tisk: so this is the last one I promise. I got the upper springs this week so i was able to finish up the rear, it will sit alot lower once I get the front off jack stands.

http://i41.photobucket.com/albums/e276/robeod/donerear.jpg


I also made a axle stand with castors to ease moving it around my shop, a must have!

http://i41.photobucket.com/albums/e276/robeod/axelstand.jpg

Here is a pic of my cage since you can't really see it above. All 1.75" .120 wall DOM.

http://i41.photobucket.com/albums/e276/robeod/rollcage.jpg

MGHay
September 15th, 2006, 12:08 AM
what are you going to do about exaust now?

Robeod
September 15th, 2006, 12:21 AM
Well I figured I'd leave it like that...... Nah, I'm gonna run cats only, no mufflers, one on each side. What do you think? How is your rig coming?

MGHay
September 15th, 2006, 01:25 PM
I'm just gonna run cat to 90 degree dump down; screw it right.
actually it looks like you've got room to sneak something past that crossmember if you wanted to.

Robeod
September 23rd, 2006, 08:52 PM
I finished the front uca tabs and welded them on, no pics of the frame mount yet, camera died.

http://i41.photobucket.com/albums/e276/robeod/uca.jpg

Steven_Mc
September 25th, 2006, 07:22 AM
Looking Good! :hail:

Jefe
October 1st, 2006, 03:39 PM
:popcorn:
Nice buildup!!

Steven_Mc
November 10th, 2006, 07:41 AM
What's the latest? Any updates?

Damian
November 22nd, 2006, 09:25 PM
need more updates!

Robeod
January 9th, 2007, 06:06 PM
Ok, not gonna make excuses. I had to put the Jeep in in the back of my garage to make room for my truck, well decided I could handle a snow covered truck in order to work on my Jeep. Here is the work I did this past weekend:

Front upper control arms and one lower finished
http://i41.photobucket.com/albums/e276/robeod/upperlower.jpg

Fuel cell mounted
http://i41.photobucket.com/albums/e276/robeod/fuelcell.jpg

Fuel lines, filter, and pump installed
http://i41.photobucket.com/albums/e276/robeod/filter.jpg

I finally found the motivation to try and wrap this project up. Again sorry for the delay.

Kirby N.
January 9th, 2007, 10:35 PM
I work out at the Former Lowery Bombing and Gunnery Range. It's over by Aurora Reservoir. We locate unexploded ordnance and blow it up.
The main reason I switched out the frame mounts is, the new way allows for more surface area to weld the tab to the frame. I also decided I needed to push the rear axel back a few more inches. By remounting the link I was able to move the axel back some without having to make new bars.

Will you run out of travel on those upper heims when they are mounted horizontally?

Robeod
January 10th, 2007, 06:20 PM
Well it kinda looks that way huh? If you think about it though, the uppers really don't travel up and down that much. As the left tire goes up and the right tire goes down or visa versa the center (uppers) just roll a little. If the front or rear completely unloads enough to bind the hiem joints my limiter straps will take over, I HOPE!

Kirby N.
January 10th, 2007, 09:50 PM
Hmmm. Ok that makes alot of sense to mount them that way, now. Thanks

Damian
January 11th, 2007, 12:05 AM
http://i41.photobucket.com/albums/e276/robeod/donerear.jpg

Fair warning, the shocks need to be mounted the other way on the axle. Meaning the bolt goes front to back not side-to-side. Something like this (taken from the Rusty build):
http://www.dandcextreme.com/upload/rusty200.jpg
http://www.dandcextreme.com/upload/rusty201.jpg

Every single person I know who has mounted their shocks that way has broken off the bottom of their shocks.

Just something to consider ~ if not anything, definately test-flex it before you take it anywhere.

tatestj
January 11th, 2007, 12:26 AM
Fair warning, the shocks need to be mounted the other way on the axle. Meaning the bolt goes front to back not side-to-side. Something like this (taken from the Rusty build):
http://www.dandcextreme.com/upload/rusty200.jpg
http://www.dandcextreme.com/upload/rusty201.jpg

Every single person I know who has mounted their shocks that way has broken off the bottom of their shocks.

Just something to consider ~ if not anything, definately test-flex it before you take it anywhere.

hey do you have a link to the rusty build?

Damian
January 11th, 2007, 12:45 AM
hey do you have a link to the rusty build?

The most to-the-point build thread is on the Binder Bulletin. Those guys aren't into the super buggy stuff so they tend to sit back and watch instead of asking a bunch of questions. Here's a link ~ a two year thread with 600+ pictures in 5 pages.
http://www.binderbulletin.org/forums/showthread.php?t=29557

I have a build on POR that got many MANY more comments and input.

Robeod
January 11th, 2007, 09:52 PM
Damian, thanks for the tip. I read somewhere that you have to keep the shock eyes opposite of each other (bottom- front to back, top- left to right). Do you know about this? As far as the way the axel travels I can see why mounting both with bolt front to back would keep it from binding.

Damian
January 11th, 2007, 10:02 PM
No worries man. As you can see, I mounted Rusty's eyes the same directly/plane. I don't recall mounting any coil-over with the eyes pointing opposite ways.

With linked suspensions (well at least mine) the axle doesn't travel front to back far enough to run the hiem (at the end of the shock) out of room. As long as you dont' over extend the tiny little "heims" in the shocks your good. Just make sure that you test flex it to make darn sure ~ but I'll be honest, I doubt you need to worry about it.

Keep up the great build man. I can't wait to see this thing finished.

Robeod
January 12th, 2007, 08:20 PM
Damian, Here is a pic of Ground Controls rock racing rig from his build thread, notice the coilover mounts:

http://www.colorado4x4.org/vbb/attachment.php?attachmentid=4687&d=1164126278

Damian
January 18th, 2007, 08:04 PM
Well, theres one that hasn't broke ~ I"ll give it that, but to be honest, that scares the heck out of me. It'll normally snap the shock right above the mount.

To each their own. I'm not here to knock anyone.

Boing
January 26th, 2007, 12:30 PM
Well, theres one that hasn't broke ~ I"ll give it that, but to be honest, that scares the heck out of me. It'll normally snap the shock right above the mount.

To each their own. I'm not here to knock anyone.

my fox coilovers have a small heim in the bottom, i am sure the bilstiens do also... as long as he mounts the the other way on the chassis side he will be fine, (unless you get just stupid flex to the point that it binds) however they also have missalignment washers to allow the heim even more movement...

BrownCJ
February 1st, 2007, 06:35 PM
My CJ has progressed the same way, have you checked for cracks in the frame yet? Thats the bad thing about building a CJ they have weak frames! I've been fixing new cracks for the last two years on mine, so the next thing I'll be doing is plateing the frame. Good luck with your rig!

crawlnjeep
February 12th, 2007, 12:38 PM
I broke my CJ7 frame in half just in front of the firewall, as well as a few other spots like by the p.s. box bracket. That's why I'm now making it a buggy. To check for binding on the coilovers, you should test for binding by moving the axle through its range of motion: full compression, extension, and stuffed one side, drooped the other. This is easy with coilovers-just pull off the coils. You can check for driveshaft binding at the same time. I spent quite a bit of time doing this when setting up my coilovers and airshocks to save myself problems later on.

Robeod
March 6th, 2007, 08:18 PM
Finally got her standing on her own four feet! I also had the rear drive shaft lengthend and installed.

http://i41.photobucket.com/albums/e276/robeod/up.jpg

I also plumbed the rear brakes.

http://i41.photobucket.com/albums/e276/robeod/brakes-1.jpg

All that is left is:
hydro steering
front brake lines
front drive shaft
exhaust
painting
It will be done by the spring!

Stay tuned:D

Kirby N.
March 6th, 2007, 10:03 PM
Rad!

Steven_Mc
March 8th, 2007, 06:55 AM
Looks Great!! I've really got to get cranking on mine before it winds up sitting for another summer. :hail:

82'CJ7
March 8th, 2007, 10:20 AM
Looking good!! Nice Build

rch
March 8th, 2007, 04:48 PM
Sweet! Are you going to try to take it to moab for EJS?

Robeod
March 9th, 2007, 03:20 PM
Dude I wish I could go! I've never been there. I want to put it through it's paces here locally and I don't have a trailer yet:( Hopefully next year!

Damian
March 12th, 2007, 10:41 AM
http://i41.photobucket.com/albums/e276/robeod/brakes-1.jpg

May I suggest gussetting the truss to the tube. I've seen some rip the truss tube after 3-4ish years of serious abuse ~ and I use 2" x 1/4" wall DOM on my projects. Its not the welds that fail, its the tube itself.

Steven_Mc
March 31st, 2007, 08:09 AM
So what's the latest? This thing finished yet?

Anthrax
May 9th, 2007, 05:52 PM
:confused: