Ooooh... So nice
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| Rear Lower Control Arm Upgrade http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=91278 |
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| Author: | 65Corvair [ Mon Jun 29, 2020 12:22 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
They look great! Sent from my Pixel using Tapatalk |
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| Author: | casm [ Mon Jun 29, 2020 9:03 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Ooooh... So nice
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| Author: | WWDiesel [ Mon Jun 29, 2020 11:04 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
casm wrote: Ooooh... So nice If you would like a set, please let me know, the IronRock Arms are super heavy duty compared to the OEM arms.  Looks like a part that would go on a Tank! 
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| Author: | casm [ Mon Jun 29, 2020 11:40 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
WWDiesel wrote: casm wrote: Ooooh... So nice If you would like a set, please let me know, the IronRock Arms are super heavy duty compared to the OEM arms. Looks like a part that would go on a Tank! I definitely do, but it's going to be a couple of months before I can pull the trigger. Have to get a bunch of other expenses out of the way first. |
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| Author: | Mountainman [ Mon Jun 29, 2020 8:30 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
I ordered a set  I wonder how much centering the tires in the wheel well affects the hockey puck/bumpstop equation? I'm going to see if I can get away with 2 vs 3, with the OME+2 extra iso's. More articulation baby! Perfect timing for the 265/75 duratracs |
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| Author: | WWDiesel [ Mon Jun 29, 2020 9:49 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Thanks for your order! Since the rear axle travels in an arc up and down, I don't think 2-3 inches will be even noticeable as far as the springs and pucks are concerned. But you will have to pay real close attention to pinion/driveshaft angles. I set my lower arms out about 1/2" further than the stock arms to lower the pinion angle a little bit in reference to the output shaft of the transfer case. I will report if there are any adverse effects or if I have to readjust the lower arm positions. The output shaft of the transfer case and the input shaft of the rear axle pinion should be on fairly even planes with each other as shown in the picture below. 
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| Author: | Mountainman [ Tue Jun 30, 2020 1:55 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Thanks for making yet another top notch upgrade for us! Thanks for the diagram. Would you mind posting your angle(s), lift config (I think you have OME's with no extra iso's?) And if you had to adjust the iron rock UCA as well? When I bought your UCA I also got one of those driveline angle gauges, but your recommended adjustment on the iron rock worked great, can't remember the angle though. |
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| Author: | WWDiesel [ Tue Jun 30, 2020 10:43 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Mountainman wrote: Thanks for making yet another top notch upgrade for us! Thanks for the diagram. Would you mind posting your angle(s), lift config (I think you have OME's with no extra iso's?) And if you had to adjust the iron rock UCA as well? When I bought your UCA I also got one of those driveline angle gauges, but your recommended adjustment on the iron rock worked great, can't remember the angle though. Did not change the IronRock upper control arm setting, Heim Joint is still screwed all the way in to bottom of threads in control arm. I have IronMan Springs and a 1/2" clevis lift up front. Don't have any extra Iso's. I did extend the new IronRock control arms out 1/2" more than the factory OEM arms to move the the pinion angle down to parallel the plane of the transfer case output shaft. These are the measurements right now tanken on level concrete unloaded. Transfer case output shaft: 4 deg.s down below level centerline. Driveshaft: 13 deg.s Pinion shaft angle: 4 deg.s down below level centerline. Right now transfer case output shaft and pinion shaft are on the exact same planes with each other. I may adjust the pinion shaft angle back up a little to put it more in line with the driveshaft. Can't do anything about the angle of the U Joint on the transfer case end. Lifting a Liberty really increases the U joint angles since it is such a short driveshaft. |
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| Author: | Mountainman [ Wed Jul 01, 2020 12:10 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Thanks WW, gives me good reference points. Were you able to center the tires in the wheel wells? That's how I'm hoping to gain a touch of stability And more articulation. |
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| Author: | WWDiesel [ Wed Jul 01, 2020 1:17 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Mountainman wrote: Thanks WW, gives me good reference points. Were you able to center the tires in the wheel wells? That's how I'm hoping to gain a touch of stability And more articulation. Actually I had it on a lift with the wheels off and I was only concerned with pinion angle. Rear axle was at full drop to full extension of shock travel. I was not even thinking of axle centering which would be hard to calculate with the axle a full drop being it travels in an arc. But I went out and took a picture and it is very very close to center, mabe 1/2 inch off. Lucked out on that one. Tire size is 245/75/16 
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| Author: | Mountainman [ Wed Jul 01, 2020 1:53 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Thanks again. I'll start with the UCA adjusted back about 1/2" then, and see what I get. This makes 32's a much better fit, from previous rub Marks in the front side of the wheel well I think I'll be able to leave out one of the hockey pucks, but we'll see. That'd be an extra inch of articulation, fingers crossed. |
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| Author: | WWDiesel [ Wed Jul 01, 2020 2:01 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Mountainman wrote: Thanks again. I'll start with the UCA adjusted back about 1/2" then, and see what I get. This makes 32's a much better fit, from previous rub Marks in the front side of the wheel well I think I'll be able to leave out one of the hockey pucks, but we'll see. That'd be an extra inch of articulation, fingers crossed. Whatever you move the UCA's back, I would match with the LCA's all the while paying close attention to pinion angle. BTY, I got your swaybar mounting brackets built, just waiting on the IronRock LCA's to get here so I can weld them on.  Used grade 8 bolts. ACE Hardware sure thinks highly of them $$$! 
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| Author: | WolverineFW [ Wed Jul 01, 2020 6:35 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
https://www.belmetric.com Order bolts from this place. Sent from my SM-G965W using Tapatalk |
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| Author: | Mountainman [ Wed Jul 01, 2020 10:00 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
"Whatever you move the UCA's back, I would match with the LCA's all the while paying close attention to pinion angle." BTY, I got your swaybar mounting brackets built, just waiting on the IronRock LCA's to get here so I can weld them on. Used grade 8 bolts. ACE Hardware sure thinks highly of them $$$! [/quote]Makes sense, whatever the current angle is, it has held up well, so I bet it will be even better with the lca's being adjustable, although I'm adding an inch of iso's. Based on yours I guess I'll start with 1/2" up top, and 1" for the lca's. Thanks for the update. Now just waiting for shipping 
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| Author: | WWDiesel [ Wed Jul 01, 2020 10:03 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Mountainman, your brackets ready for welding once your IronRock Arms arrive.  
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| Author: | Mountainman [ Thu Jul 02, 2020 1:40 am ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
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| Author: | mercdude [ Wed Feb 03, 2021 1:33 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Bump! So I'm looking at these adjustable rear LCA's to fix an alignment issue with my KJ. After having some pull on the freeway (knock on wood that the front LSD isn't causing this) I had the alignment checked and apparently (along with the LF toe being out) the rear axle is 'bent' a bit which is throwing off the rear left toe angle and supposedly pushing the vehicle to the right at speed. I'm betting that with these I can get it dialed-in perfectly. |
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| Author: | WWDiesel [ Wed Feb 03, 2021 9:54 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
The adjustable WJ IronRock Lower Rear Control Arms are super heavy duty and work perfectly on the Jeep Liberty. Simple bolt on. I weld custom mounts on them to be able to attach the OEM sway bar if you want to keep it in service.  IronRock Arms in service: 
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| Author: | mercdude [ Thu Feb 04, 2021 2:47 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Might have found a less-expensive adjustable LCA option at Dynamic Performance:  Specs show that they'll fit, but not sure about brackets. Found here: https://www.godpt.com/products/for-grand-cherokee-wj-1999-2004-complete-rear-lower-adjustable-control-arm-2pcs?variant=32144325083254¤cy=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=gs-2019-10-02&utm_source=google&utm_medium=smart_campaign&gclid=EAIaIQobChMI8-GlgdzQ7gIVWB-tBh2LaghhEAQYCiABEgI7u_D_BwE I'm already discussing this with WWdiesel, but what do you guys think? |
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| Author: | spoon [ Tue Feb 15, 2022 6:58 pm ] |
| Post subject: | Re: Rear Lower Control Arm Upgrade |
Any update on this? |
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