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The DIY $700 Off-Road Capable SOA


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NOTE: This thread is merging three threads regarding building a DIY SOA lift that is off-road capable and does not break the piggy bank.

 

I would like to keep this thread to just the DIY. If you have other comments please post them here

http://comancheclub.com/topic/42254-700-off-road-capable-55-soa-lift/

or here

http://comancheclub.com/topic/28522-incommandos-4x2-redux/

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Doing an SOA can seem less expensive but it is often not as cheap as you might think. A lot depends on what you want out of the lift when you consider the end use of your jeep. Do you want a great on-road ride at the possible cost of lessened off-road ability? Do you want the best off-road bang for your buck while still using quality parts? The best part of a SOA lift may be that you can piece it together as your budget allows and then assemble it when you have all of the pieces. You can also scour various for sale forums to find better deals on new and/or good used parts to lower the costs. 

 

With these things in mind here is a parts list for an off the shelf DIY SOA:

 

 

 

"Budget" SOA 5.5” lift.

 

Front RE 5.5" Springs                                                                                                          $87

http://mudflaps.com/i-7093397-rubicon-express-re1345-coil-springs-jeep-xj-5-5-jeep-zj-4-pair.html 

Adjustable Track Bar                                                              $128

http://mudflaps.com/search.html?q=+RE1600&go=Search

 

IRO link adapters                                                                                                                  $13

http://www.ironrockoffroad.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IROR&Product_Code=IR-SBLUB&Category_Code=UP

 

RE1175 links                                                                                                                          $29

http://mudflaps.com/i-7093357-rubicon-express-re1175-sway-bar-end-links-jeep-xj-zj-tj.html

 

Fixed lower & adjustable upper control arms                                                                  $269

http://www.ironrockoffroad.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IROR&Product_Code=IR-SHDCA&Category_Code=XSP

Allows for adjustment of the pinion angle while keeping the adjuster tucked up high. Save $20 by using fixed upper & lowers

 

Barnes 4wd axle swap kit D44 3” tube                                                                              $115

http://www.barnes4wd.com/Dana-44-Axle-Swap-Combo_p_129.html

Pick your tube Diameter: 2.75” for stock MJ axles or 3.0” for 8.25 swap. Includes perches, high quality u-bolts, spring plates, & shock mounts. I swapped to bent & curved shock mounts for free

 

 

Front brake hose 88-2000 c1500 oreilly $14x2                                                                  $28

http://www.oreillyauto.com/site/c/search/Brake+Hose/03349/C0066.oap?model=C1500+Pickup+RWD&vi=1031094&year=1988&make=Chevrolet

 

rear brake hose 89-96 dakota oreilly                                                                                 $23

http://www.oreillyauto.com/site/c/detail/BHH1/BH38636/03349.oap?year=1990&make=Dodge&model=Dakota&vi=1087433&ck=Search_03349_1087433_2121&pt=03349&ppt=C0066

                                                                         

 Total                                                                                                                                      $692

 

Add Shocks

F. shocks Rusty's RX16  29.92 17.52 S1 BP-7                                                                   + $66

http://www.rustysoffroad.com/rustys-rx100-performance-shock-rx-16.html/

R. shocks Rusty's RX11 29.82 17.67 EB1-A EB1-B                                                           + $66

 http://www.rustysoffroad.com/rustys-rx100-performance-shock-rx-11.html/

 

I left the shocks off of the initial total as I am willing to use the basic hydro version but others may not want them. Also another very popular SOA lift thread does not inlcude the price of shocks in its list and I wanted a sort of "apples to apples" comparison for those looking for different options. Although the front shocks may be selected based on lift height please remember that your rear shock choice will be dictated by how you mount them. The only sure way to know what you need is to flex and compress your springs after the lift is done and use those measurements.  You can adjust the front or rear height if needed to get the stance that you want by using spacers, shackles, or blocks. The rear shocks listed above are a good starting point based on the shocks included in various SOA kits available when those kits use weld-on shock mounts.

 

You will also probably want to add extended bump stops unless you are making a pavement queen..and you should have them then, too. You can spends a couple of bucks and fab them yourself or spend hundreds and anything in between. I will fab mine and I don't believe it will cost me over $10. 

 

I am going with the fixed lower/adjustable upper control arms from my personal observations. The fixed lower centers the axle in the wheel well while the adjustable upper allows for pinion angle/camber adjustment to combat death wobble. I chose to use an adjustable upper over an adjustable lower to keep the adjustment pieces up out of the way. You can also go fixed/fixed or adjustable/adjustable based on your desires. I avoided drop brackets as from my experience while wheeling with CAD bracket equipped XJ's and an MJ equipped with them the brackets may hit in several off-road situations. While I have not seen a bracket itself fail I have seen the bracket smash the "frame" it was attached to when coming off of a rock. The blow would not have occurred without the low-hanging CAD brackets as in this case a short-armed XJ of a similar lift height and tire size had previously made the same drop without contact. While the CAD brackets may provide a superior on-road ride they may lead to trouble in certain off-road situations . I want to eliminate that possibility. The choice is another personal preference thing. A quality CAD bracket kit designed for the MJ and not requiring modification ( as an XJ kit does) is comparable in price to buying the control arms in my parts list and that is without the control arms. My choice also has less labor involved which is especially handy the rust belt. 

 

The track bar I have in the list is perfectly adequate. A popular upgrade is a double shear track bar with a stronger body-side mount available from many sources. IRO has a good set as does RE (1660 + 1665)

 

Using anti-seize on the sway bar links makes them easier to disconnect. As with any disconnect make sure to include a hay to hold the links up out of the way when disconnect even if it is just zip ties. Disconnects are a nice upgrade with a wide range in price for a set. 

 

With the addition of shocks you can see that such a SOA lift is knocking on the price-range door of some pre-assembled kits for a similar lift height and in some cases exceeding it. However many of the pre-made lift kits at this price-range are of an inferior quality and lack some of the parts, such as adjustable control arms and/or a complete control arm set, that I included and that many feel are required for the best performance.  Research which way you want to go. 

 

Many thanks to Alexia for pioneering the way with his research and sources. Her SOA lift is very thorough and well planned. I went a different way as our end goals are different.  http://comancheclub.com/topic/35519-55-600-mj-lift-cheap-high-quality-100-complete-lift/page-5 

 
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Now.. having said all of that I would like to point out that the parts listed above are perfectly capable and more importantly available for purchase at any time. But...

 

I mentioned that you can often find good used parts and new parts that folks have bought but did not use. I found a package deal on CL that included NIB fixed Rusty's extended LCA's, Rusty's braided extended brake lines, and a never installed Rock Krawler quick-disconnect kit for $100. To purchase these three items new and to have them shipped to me would have been $320.

 

The new stuff:

 

These items provided a nice upgrade in parts and aided the budget at the same time. And that lead me in a slightly different direction...

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Here is the direction that I actually ended up going due to finding those deals. Again the flexibility in doing such a lift is one of the advantages.

 

(NOTE:  Pricing as of 4/1/2014)

 

 

 

Front RE 5.5" Springs $87                                                                                                      $87

http://mudflaps.com/i-7093397-rubicon-express-re1345-coil-springs-jeep-xj-5-5-jeep-zj-4-pair.html 

Adjustable Track Bar RE1660                                                       $125

http://mudflaps.com/i-7093479-rubicon-express-re1660-front-adjustable-super-flex-track-bar-jeep-xj-zj.html 

 

Track Bar Bracket RE1665                                                                                                      $54

http://mudflaps.com/i-7093480-rubicon-express-re1665-track-bar-bracket-hd-jeep-xj-zj.html 

 

CL find package deal:

RK QUICK DISCONNECTS

RUSTY'S FIXED LOWERS

RUSTY'S BRAIDED FRONT BRAKE LINES  

 NIB FROM CRAIGSLIST                                                                                                         $100                                                                                                 

Upper adjustable control arms RE3780 Amazon                                                                $165

http://www.amazon.com/Rubicon-Express-RE3780-Super-Flex-Control/dp/B006GJLM4C/ref=sr_1_1?s=automotive&ie=UTF8&qid=1395074527&sr=1-1&keywords=re3780 

 

Barnes 4wd axle swap kit D44 3” tube                                                                                $128                  http://www.barnes4wd.com/Dana-44-Axle-Swap-Combo_p_129.html

Pick your tube Diameter: 2.75” for stock XJ axles or 3.0” for 8.25 swap. Includes perches, high quality u-bolts, spring plates, & shock mounts. I swapped to bent & curved shock mounts for free

 

Shocks                                                                                                                                     $82

F= Monroe 32305 27.25 15.62 Amazon / R= Monroe 32370 27.25 16.12 Amazon

 

BPE's Rough Country #1088 Amazon                                                                                    $25

 http://www.amazon.com/Rough-Country-1088-Eliminator-Unlimited/dp/B00B2AFP8O/ref=sr_1_1?ie=UTF8&qid=1395075565&sr=8-1&keywords=rough+country+1088                                                                       

 Total  Including shipping  AND shocks                                                                               $ 767

 

The new prices and total include shipping charges and show that those shipping charges can drastically change your bottom line. Remember that paying more for the part and/or bundling parts from the same supplier even if an individual part in the group may be cheaper somewhere else may save you a lot of money on shipping. Of course shopping for free shipping items is a great idea.  I have found that the RE4020 Adjustable upper control arms are $173 and shipped free from Mudflaps.com. The $160 IRP uppers are $178 with shipping. $5-$10 here and there adds up just as quickly in savings as it does in nickle and dime charges.

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For the rear SOA I ordered the Barnes 4wd (great products & great service but RuffStuff would have done just as well) simple axle swap kit as listed above. It is for a D44 as that is the kit that offers the axle tube options ( 2.75" & 3.0" ) most commonly found in MJ's. I used the 3.0" no-cost upgrade as that is what is needed for the 8.25 I am swapping in. Some people try to save some money by flipping the stock springs plates side to side and re-using them as shock mounts on the top of the spring pack. That leaves them just having to buy perches and u-bolts. I do not recommend re-using U-bolts and being able to just cut off the old bolts instead of trying to get them off is a big plus where they use road salt. To re-use the stock plates and their shock mounts you would really limit your flex as that would keep your shock length short. Ok for a street truck I guess but if that is not what I am after. Some report that the original u-bolt holes in the stock D35 spring plates have enough wiggle room to use them with a 3" tube but I have not checked this as I am not going that route. The difference in tube & U-bolt sizes,especially with the much larger Barnes or RuffStuff u-bolts, may result in the need for further fabrication to the plates, anyway. The Barnes stuff is pure beef.

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Another advantage to this kit is that the spring pads are longer to combat axle wrap and are drilled to allow you to move the axle forward or back to fine tune its position. Short factory-style pads do nothing to help in either of these areas. You can buy just the better perches and they are only about $10 more than the cheapies. Decisions on these parts are good places to make good use of the $5 or $10 bucks you save here and there by shopping around.

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The plan:

 

-Remove the front control arms, shocks, drive shaft, track bar and brake line. I started soaking things down with PB Blaster about a week before I began dis-assembly. You are able to replace the stock shocks, springs, track bar, control arms,etc.... at this time. I am using an uber cheap hockey puck bump stop system ( http://www.jeepforum.com/forum/f11/hockey-puck-bump-stops-1096774/ )so I drilled the lower coil buckets for the bolt at this time. Replace with the lift goodies. I also took this chance to upgrade the front tie rod to the solid bar version from a V8 ZJ. The factory tie rod is a weak link and this is a worthy upgrade. You can spend hundreds on an aftermarket steering system if you feel it is needed for your usage.

 

- If you are re-using your rear stock axle remove it by cutting u-bolts and removing brake lines/cables and shocks. You will need to cut off the factory spring perches. I 4.5" angle grinder worked well for me.

 

- Position axle back under MJ with the unwelded perches placed on top of the tube and rest the springs on them. Use the u-bolts and nuts to Mosley hold the whole thing together. Measure for proper position of the axle under the truck side-to-side & forward-and-back. Doing so in an x-pattern and from multiple points helps. Set your pinion angle. Remember that for drive shafts with a single u-joint at each end the input yoke on the axle should be parallel to the output yoke angle on the transfer case.

 

-Weld the new perches and shock tabs onto the axle. Use new u-bolts to attach axle.

 

- Cycle your suspension even it it is using floor jacks. Measure the distance from the upper and lower mounts in three positions: fully compressed, at ride height, and at full droop. Order your shocks accordingly. Remember that the proper shock is dependent on whether you have an LWB or SWB, use the stock upper mounts or fab a mount, and where you position your shock tabs. I welded my tabs onto the axle tube as low as possible while still keeping them above the bottom line of the tube to keep them from dragging on anything. I also took this chance to ditch the load sensor thingy and run all new rear soft and hard lines.

 

- If you are swapping out the rear axle you will need either a donor shaft from a truck with the t-case and rear axle combo that you are using or you will need a custom drive shaft. Remember that it is much cheaper to have a longer shaft shortened and re-balanced ( $85 here) versus having a custom shaft made or having one "lengthened."

 

-set the pinion angle for your front shaft per this picture:

Follow this link to driveline geometry 101: http://www.4xshaft.com/

Getting the proper angle for your front u-joints and camber can be a compromise at this amount of lift. There may not be a set angle in degrees to get you the proper adjustments to prevent death wobble and provide a smooth, quiet, long lived u-joint drive shaft. Using the Tom Woods chart above I pointed the axle yoke at the t-case output yoke and verified that the angle of the axle yoke was the same as the angle of the drive shaft.I have zero bump steer, death wobble, or other shenanigans even at well above the posted speed limit in an area noted for lousy pavement and potholes.

 

- Measuring tape align the front end as detailed various places online or by using this tutorial

before driving to the alignment shop for a quality alignment. I am fortunate and was to skip the professional alignment shop as the buddy helping me has built numerous tube-chassis race cars for both drag racing and circle track. He has a couple of jigs and the know-how to get a darn good alignment the first time.

 

Yes this is over-simplified. If you need more instruction spend as much time as possible educating yourself or hire/bribe a competent mechanic to do it for you. No suspension work and especially something of this magnitude should be attempted by anyone who doesn't know what they are doing. It is up to you to know whether you do or don't.

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Pic time!

 

The starting point: 225,000 mile '91 2wd SWB MJ ( I did a 4wd conversion at the same time as the lift) on 31" tires but with a good amount of body trimming and TJ flares due to rust removal:

Rear SOA in place/front at stock height

 

Lift all on..just needs finished

Never say finished with a Jeep

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Easy hill

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Went left
Poor little Wrangler could not follow me
Left the TJ's impressed
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My drive shaft is sorta custom made due to the 4wd conversion. It is actually a used shaft picked from a pile of them at a junkyard because it had the correct u-joint yokes. I then had it cut down & rebalanced. The factory 2wd shaft is a two-piece thing with a rubber sleeve in it that it apparently difficult to modify.  I used a chart from here on ComancheClub and had the rear shaft cut to the specifications of a SWB with an 4.0/AW4/231, and D44 - 41.25" That is the combo closest to my 4.0/AW4/231/8.25 combo. Cut & rebalance was $85.

 

I have no drive shaft issues. I have wheeled it twice now and it does not bind at all. Highway travel is also without drama. Due to well-worn 2wd rear leafs I am at less than 5.5" of lift in the rear. That does not seem to be enough lift to warrant an SYE or such with our longer wheel-bases. I am not all that much higher than the dime a dozen 4.5" lifts out there. The front shaft still has plenty of spline engagement at full droop. 

 

http://comancheclub.com/topic/18925-looking-for-driveshaft-lengths-of-stock-trucks/

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Here it is on an RTI ramp next to an '06 TJU/LJ Unlimited with a $1,400 teraflex left and 35's. The camera angle is deceptive: 0ur front tires are stopped dead even. No front shaft issue.

and here it is from the rear

I have since been told that I misunderstood theri intentions and they stopped the truck before max flex as they wanted it for a photo-op for the club's FB page. I was the only modified non-Wrangler there at the time. I thought they stopped me due to the rear tire lifting and that is not the case. I could have gone further after the pic but believing I had maxed out I just backed down. I am actually not a huge RTI fan as it doesn't always translate into real world ability. The truck works well off-road.

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  • 4 months later...

Oh: 79 miles there, 6 hours and 19 miles of off-road trails, 79 miles home and the truck drove like stock at 70+ MPH and had no handling or reliability issues at all. There are better off road lifts, there are better on-road, but this works very well all around. and was comparatively inexpensive. 

 

 

I am supposed to be getting some pics of the more hard core stuff whenever the guy gets it downloaded and sent to me.

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  • 4 weeks later...

I have two parts lists posted: an easily repeatable one compiled from various sources and then one with red highlights which is what I used. I found NIB RK Rock Crawler links for cheap and used them. At 5.5 " of front lift I have plenty of adjustment left. You might want to look into those.

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