Heavy Duty Rear Control Arms (1 Viewer)

Joined
Aug 17, 2004
Messages
4,842
Location
Colorado
FirstToy said:
All the IFS long travel use uniball UCA's... I don't think it's a problem for street use (then again, maybe it's a don't ask/dont tell thing)

I'll spare you the long and sordid history, but suffice it to say that in the Jeep world heims, including the highest quality available, were tried extensively by major offroad manufacturers in the late '90's when the TJ hit the market. I only know of one who still uses them in control arms, and that is Skyjacker, and Skyjacker does all kinds of crazy sh$t. Johnnie joints are pretty much a standard.

The reason to use heims these days centers around load bearing. You see them in buggies, because at 1" or so the load ratings are unreal. You really can't compare solid axle control arms to IFS suspension components. There is nothing wrong with heims, but you'll be greasing them weekly and they are highly unlikely to last a lot of road miles. It's just a reality of the design.

Nay
 

lcwizard

Supporting Vendor
Joined
Dec 5, 2004
Messages
4,949
Location
Miami, Arizona
johnny joints won't work because the largest one (3") only has a 3/4 thru hole. because a pair of misalignment bushings are required with an 18mm thru hole
a one inch thru hole is needed so we use a 1" rod end
 
Joined
Sep 7, 2005
Messages
1,284
Location
Kingsport, TN
Has anyone experimented with an angled LCA for better clearence?

reararm.JPG
 

landtank

Supporting Vendor
SILVER Star
Joined
Mar 27, 2003
Messages
20,042
Location
Groveland MA
alia176 said:
Why the need for such heavy duties? Specially, for an on roader, low rider, go fast rig like yours, I don't see anything to be gained from spherical ends. :confused:


just changing stuff to change stuff I think. I think that's his whole point towards the truck, swap out as much of the factory parts with whatever you can find whereever you find it.


But it just might be me as he hasn't bought my seat mod yet.
 
Joined
Oct 27, 2003
Messages
9,640
Location
North Cadillac
TiredIronGRB said:
Has anyone experimented with an angled LCA for better clearence?

reararm.JPG


I imagine as long as you compensate for loss in length due to the bend, those LCAs look to be a good upgrade to avoid bending them as easily on rocks.
 

lcwizard

Supporting Vendor
Joined
Dec 5, 2004
Messages
4,949
Location
Miami, Arizona
on road manners won't differ with either the slee or MAF product. the sphericals are there to alleviate stress on the mounting brackets during articulation. hopefully the brackets will last longer
 

alia176

SILVER Star
Joined
Aug 21, 2003
Messages
13,069
Location
Tijeras, NM
Angled LCA? Very common with LRs.... I ran a set of these in my RR. Very beefy and and has varying thickness spacers to move the pinion up/down. They made great sliders :D

Ali
RT_1.jpg
rearlinkinstalled.jpg
 
Joined
Oct 18, 2005
Messages
395
Location
Hungary - CA
after bending the rear factory control arms as easy as paper clips on a little venture out and about the sierras circa 3AM, I went with the SLEE heavy duty arms, and I have not been able to destroy them yet, and trust me I do give destructive testing a very valiant effor any chance I get. So my vot is on SLEE rear HD control arms. They are also a breeze to install.
 

lcwizard

Supporting Vendor
Joined
Dec 5, 2004
Messages
4,949
Location
Miami, Arizona
concretejungle said:
I personally like the flexyness of the MAF but slee has the adjustability. So buy the MAF and then add slee's adjustable link in them and you have the best of both worlds. IMHO

be careful with adjustable lowers. a 1/2" longer and those of you with 37" tires will take out the back of the fender well. it's safer to do pinion adjustments with adjustable upper links.
Toyota was quite precise when they determined the correct length for the lowers.
 
Joined
Aug 17, 2004
Messages
4,842
Location
Colorado
lcwizard said:
johnny joints won't work because the largest one (3") only has a 3/4 thru hole. because a pair of misalignment bushings are required with an 18mm thru hole
a one inch thru hole is needed so we use a 1" rod end

I was wondering if the metric vs US sizes was the issue after I posted....it's all good until you can't make stuff fit :doh: . That's too bad. So you are using a 1" thread/1" bore rod end with the misalignment spacers to take the 1" bore down to 18mm?

Does MAF warranty the rod ends for wear? If so, for how long? You guys have any good data sets on how long they are lasting in mixed use for say 10K miles per year and 10 offroad trips?

I get the point about long term mount stress...but haven't seen reports of failures around here. Is is the frame mounts or axle mounts?

I think you guys need to get a johnny joint manufacturer to spit out some metric sizes :D . You'd think everybody drove Jeeps or something.

Nay
 
Joined
Feb 18, 2006
Messages
1,038
Location
Maryborough, QLD, Aust.
I know this won't interest you LX_TREME but any way.
After pretzeling mine I straightened it out using a couple of bits of wood and a sledge hammer. I then stitch welded 30x30x3 angle iron to the arm to strengthen them. I play hard and haven't bent them yet. They don't look pretty but they do the job and didn't cost much, just the price of the angle.
 
Joined
Aug 17, 2004
Messages
4,842
Location
Colorado
Arya Ebrahimi said:
Last I checked Jeeps used metric bolts...

13/16" on the lower control arms. How quickly you forget :flipoff2:

That has me wondering how we got away with JJ, though...if we take at face value that the largest JJ bore is 3/4"...
 
Joined
Apr 12, 2005
Messages
1,720
Location
Seattle, WA
Mickldo said:
I know this won't interest you LX_TREME but any way.
After pretzeling mine I straightened it out using a couple of bits of wood and a sledge hammer. I then stitch welded 30x30x3 angle iron to the arm to strengthen them. I play hard and haven't bent them yet. They don't look pretty but they do the job and didn't cost much, just the price of the angle.

Prior to getting the MAF arms, that's exactly what I did, too (welded angle iron) after a miscommunication with a guy named Steel Bender at Moab.

Dave
 
Joined
Feb 18, 2006
Messages
1,038
Location
Maryborough, QLD, Aust.
4WD Toyota Owner Magazine said:
Prior to getting the MAF arms, that's exactly what I did, too (welded angle iron) after a miscommunication with a guy named Steel Bender at Moab.

Dave

Mine was a miscommunication with a guy named Cruiser Canyon at LCMP.;)
 
Joined
Jul 30, 2004
Messages
714
Location
SoCal
Well the new adjustable uppers came in today. We should have a full write up with all of the specs next week. We also have new adjustable rear panhards with spherical rod ends as well, fronts should be out in a few weeks. Enjoy!
80uppercntrlarms.jpg
80rrpanhardrod.jpg
 
Joined
Aug 17, 2004
Messages
4,842
Location
Colorado
Panhards are an excellent place to run rod ends (no side to side play from a bushing and they last pretty long). NICE to see this on the market.

Nay
 

Users who are viewing this thread

Top Bottom