Long Arm Build for a TJ - Page 15 - JeepForum.com
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post #211 of 307 Old 10-23-2009, 11:58 AM Thread Starter
Tommy R
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Wow, I haven't been getting notifications so I missed this last wave of discussion. There are several reasons why I didn't do that, most of which tweba already covered. Ultimately, it's all about compromise. Longer lowers means longer uppers are also needed to keep geometry in check. That poses a big problem in the rear and for the front when I enventually make it a 3 link. Longer arms also catch and drag on obstacles so there's a decision that must be made regarding just how much clearance you're willing to lose and how long you want your arms. Making the arms longer would've also made it tough to mount a skid plate. Lastly, I plan on stretching the wheelbase eventually. Can you imagine how long my arms would be then? I'll make the rear work fine after the stretch, but that would be as long as I would want them.


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post #212 of 307 Old 12-15-2009, 09:36 PM
egavaskcin
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over the past two day's i have read you whole thread. and it was a great help. i have learned alot with all the details and questions people have asked. your rig looks great. its guys like you that make this hobby fun
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post #213 of 307 Old 12-15-2009, 09:48 PM Thread Starter
Tommy R
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Thanks! Any questions, feel free to ask... Everyone here is pretty willing to help!

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post #214 of 307 Old 12-15-2009, 10:40 PM
egavaskcin
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thanx bud. i will deff hit you up ifi have any problems
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post #215 of 307 Old 12-16-2009, 08:39 AM
twister4fun
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I may have missed it, but what is the measurement of the lowest hole on your rear upper control arm axel truss mount? Above axel center or above lower control arm mount.
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post #216 of 307 Old 12-16-2009, 08:42 AM Thread Starter
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Quote:
Originally Posted by twister4fun View Post
I may have missed it, but what is the measurement of the lowest hole on your rear upper control arm axel truss mount? Above axel center or above lower control arm mount.
I don't know. I need to get under it to take some measurements so I can input everything in a spreadsheet. I'll post it up whenever I get around to it.

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post #217 of 307 Old 01-24-2010, 03:11 PM
89yjon
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I just read the whole 15 pages! Great write-up! Thanks for taking the time to share all the info.
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post #218 of 307 Old 01-24-2010, 09:02 PM Thread Starter
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Originally Posted by 89yjon View Post
I just read the whole 15 pages! Great write-up! Thanks for taking the time to share all the info.
My pleasure!

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post #219 of 307 Old 01-28-2010, 08:25 AM
jpony645
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Tommy,

Do you drive it much on the road? How does it handle? Did the long arms affect the driveability much?

I'm currently running a RE 4" short arm lift with 35's.
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post #220 of 307 Old 01-28-2010, 12:30 PM Thread Starter
Tommy R
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I drive it on the street all the time and it rides much, much better than with the 4.5" short arm RE lift.

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post #221 of 307 Old 02-24-2010, 06:53 AM
BygKuntrey13
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ima BUMP this thread cuz im working on a 44/44 install and the coil kit i got welded on the front is for long arms so Y waste a perfect opportunity to fab something else up! GREAT JOB BRO "duhrock:

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post #222 of 307 Old 03-22-2010, 06:24 PM
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Wow 2 years and still a strong thread. Tommy , your build thread has answered so many questions i had being new to TJs. I build cages for friends and have pretty good mechanical skills but have yet to do a link setup. My buddy asked me to find a kit to install on his o2 TJ and i figured it would be too pricey to do a complete cuctom setup. But after reading your build, its definitly doable for me and with what tools i have in my shop. We appreciate your time and effort in keeping us informed and giving your insight on a build like this.

I was originally thinking of a RE 4.5 SF short arm kit with 3.5 springs. I prefer a lower stance and i have read that most people eventually swap out the RE 4.5 springs for the 3.5 springs because they actually sit a bit higher then what they are labeled. For the price of a kit, i could make a long arm setup with money to spare for a CV and SYE. Tire Clearance for 35's isn't and issue because i will eventually cut the fenders anyways. Have you thought about using different springs or maybe a progressive rate spring? Are you happy with the 4.5 RE springs?

One other thing, when fully drooped, do your springs drop from the upper spring mount?
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post #223 of 307 Old 03-22-2010, 08:03 PM Thread Starter
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My pleasure and I'm glad you've found this thread helpful. To answer your question, the front springs come loose at full droop, but don't come out. They're retained by the bump stop within the coil. I think the rears are kept a little snugger. If I had longer travel shocks, I'm sure the springs would come loose. FYI, I'm running Rancho RS9000's.

Oh, and about the springs... I've been running the 4.5" springs because I was planning on eventually running 37s. I also had a 1" puck up front that I'd removed some time ago. But now that it looks like I may stay with the D30 and D44 for a while longer, I'm thinking of getting some 3.5" springs instead to drop the cg. I won't want it any lower than that. Sure, a low cg is great, but with just 35's it's really easy to drag or high center on obstacles so I'm only willing to go one more inch lower.

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post #224 of 307 Old 03-22-2010, 08:06 PM Thread Starter
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Found some pics that might help...

Front:


Rear, but keep in mind I was still running a rear bar at the time. I didn't keep it long.

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post #225 of 307 Old 03-22-2010, 08:09 PM Thread Starter
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Here's a shot of the rear with no rear bar. Not too much of a difference...


2001 Wrangler homemade long arm, 99" WB, ARBs, alloys, 4.88s, 35" MTRs
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