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View Full Version : Custom Radius Arms........Lucas



Roadhouse
February 24th, 2005, 11:28 PM
This is what I was thinking Lucas....not sure If I like how far they hang down on the x-member. But should be easy to make out of a set of stock radius arms.

http://img.photobucket.com/albums/v654/Roadhouse66/frontarms2.jpg
http://img.photobucket.com/albums/v654/Roadhouse66/frontarms.jpg

I like these also, but not for $649, but could possibly be made.

http://img.photobucket.com/albums/v654/Roadhouse66/5350.jpg

lgottler
February 25th, 2005, 05:28 PM
I think its a matter of personal preference really. I can only think of a few rather dumb reasons to support the way I did it and then the way that fella did it.

The only thing I can say is that because of your uni"frame" deal, you can't just weld brackets to the frame. And because of this I think that building the crossmember in such a way that the radius arms mounting bolts are just about on plane with the bolts bolting the crossmember to the "frame" would be the strongest solution as far as forces go...

In my situation, I can't go inside the framerails because I have DS and exaust clearance concerns and my trans skid is actually a belly up design that is almost flush with the bottom of the framerails. So, if I built a crossmember, it would be hanging down about 5" and spanning the width of the frame at that point = wicked hang up point.

As far as your setup, I don't know what kinda room you have around the "frame". For my wifes XJ, (I think its almost the same as your ZJ frame wise) I was thinking making a plate that mounted along the length of the frame, about 2' back from the front radius arm mounting point and was used also for a trans skid mount. This way the forces on the frame would be spread out along 2' of frame, in a straight line. I was planning to just weld a bracket onto the plate, kinda hanging down, think stock location, but backwards about 10".

I think if you were to buy something, you would have to modify it drastically anyways. Stock ford radius arms are cheap and plentiful. I have another set at my buddies house I was going to use to make the final version of mine, but it worked the first time.

A buddy of mine is considering using them front and rear.... B)

Lucas

This pic was taken before I finished the mounts....maybe I'll take a pic tonight and post it. I also had some pics from a guy that did it to his XJ that was what I built mine to copy...
http://www.123.net/~lgottler/temp/frontradius/IM000010.JPG

lgottler
February 25th, 2005, 06:32 PM
I don't have the time to type much....but anyways, I think mounting outboard of the frame would be another option, one that I'd like to try with my setup in a few years...

Lucas

Roadhouse
February 25th, 2005, 11:03 PM
Lucas those first two pictures are under a ZJ, so that what got me to thinking that method. He also beefed up the frame from where the old CA mounted in the front to where the old ones mounted in the rear, then tied both cross members into it.
I'll make some sorta crossmember in the rear also for the triangulate links to mount to.

Roadhouse
February 25th, 2005, 11:09 PM
The other option I've thought about lately is to use a 3/4ton D44 and put 5lug outers on it. Then options for mounting the links to that axle would be alot easier than using the radius arm setup. Depending on room, I could possible make it a 4 link with the upper/lowers running parallel. Or making the uppers triangulated like the long arm kit from Tera for TJ's. If room is minimal then I would just set it up like the RE long arm kits radius arms.

Oh, well spring time will tell when we tear into it.

lgottler
February 27th, 2005, 09:56 AM
Wow, that has no characteristics making me think ZJ!!! Cool!

I saved a bunch of different pictures of various radius arm setups, but I can't find 'em. If you search Pirate4x4, thats where I found most of them.

If you don't triangulate the arms, the mount for the trackarm is on top of the axle on Bronco D44's...makes angles much nicer!

On a side note, a buddy of mine has a D44 with the leafsprings, and I think he still has the 5 lug outers I pulled off the Bronco axle to swap the 8 lug outers from said above axle.

Good luck with the planning!

Lucas

HIT-MAN
February 28th, 2005, 05:46 PM
Roadhouse,I have a xj with a 4-link set up on the frame,and where they tie into the axels its a 3-link set up.If you give me your e-mail I wii send you some pics.This is a killer set-up and the flex is unreal,JIM

Roadhouse
March 2nd, 2005, 02:26 PM
Jim, my email is lowlokdzj@yahoo.com

I don't plan on going as big as your XJ, but your Jeep is Bad A$$, looks sweet on 39.5's.

Thanks for the help.

Roadhouse
March 3rd, 2005, 04:56 AM
I found this design searching around, and think I like this on the best so far.

http://img.photobucket.com/albums/v654/Roadhouse66/buggy0058ha.jpg
http://img.photobucket.com/albums/v654/Roadhouse66/buggy0061ek.jpg
http://img.photobucket.com/albums/v654/Roadhouse66/dddd9tz.jpg

lgottler
March 3rd, 2005, 01:12 PM
Originally posted by Roadhouse66@Mar 3 2005, 01:56 AM
I found this design searching around, and think I like this on the best so far.

http://img.photobucket.com/albums/v654/Roadhouse66/buggy0058ha.jpg
http://img.photobucket.com/albums/v654/Roadhouse66/buggy0061ek.jpg
http://img.photobucket.com/albums/v654/Roadhouse66/dddd9tz.jpg
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That does look pretty cool.

Some things to think about if you haven&#39;t already: The stock arms come just about straight back from the axle to get the castor right. You can get tapered bushings to adjust the castor a bit.

All this talking is making me want to redo mine.... :<img src=:" border="0" alt="mad.gif" /> at least I&#39;ll add a gussett to the back of my mount for now and figure out where my spare bolts went.

Do you have any info on the size of the bolts these guys are using for the frame side of the mount....going through the hiem joints?

Lucas

Roadhouse
March 3rd, 2005, 03:08 PM
Lucas, I have two sets of aftermarket bushings 4* and 7*, they are poly tho&#39; which I have heard good and bad from. I could use stock rubber and make sure the arms are bent up so the frame mount isn&#39;t low......like you did. Not sure on what to do with this situation yet.

I can check on the bolts....I thought I read they are using 3/4" heims. I don&#39;t know much about heims so is the 3/4" refering to the shank on the heim, or the dia. bolt used to mount the heim?

Oh to make those last set of arms they cut the tube so it slid over the radius arms and then welded it all up. There is another picture I have, but can&#39;t post it because its a bmp. But on XJ/ZJ/WJ&#39;s you can&#39;t move the upper coil mount like on TJ&#39;s(well easily). So the coils angle pretty bad, or bow. One guy make a plate out of 1/2" steel that mounts over the radius arms, but not to them. He then welded the coil bucket to it about 2" inward so the coils mount straight. I&#39;m going to look into make some plates like that....either from Tab or at another local steel shop.