Biotex Posted February 18, 2013 Share Posted February 18, 2013 Since I installed the military wrap rear leafs, I measured the front, and determined 4" to 4.5" front lift would level the truck out nicely. it is a 90 MJ. I snagged a brand new set of RE 4.5" coil springs for cheap, and I already had the extended shocks and sway bar link, so figure i'll piece together the rest. What I need to know, is about the control arms. Can I get by temporarily with just replacing the lowers and relocating the trac bar, or will the change in caster cause it to be too unstable? I'm weak when it comes to suspension geometry, so any tips or hints much appreciated. For tires, I will leave what's on there until I can re-gear. Edit: longer brake hoses also ordered... Link to comment Share on other sites More sharing options...
mnkyboy Posted February 18, 2013 Share Posted February 18, 2013 I went for about a year with 5" up front and stock uppers/lowers. Not ideal but it will drive like that. I would recommend at least lowers and an adjustable trac bar. Also don't forget brake lines, you can pull down the hard lines but your best bet will be longer hoses. Link to comment Share on other sites More sharing options...
Biotex Posted February 18, 2013 Author Share Posted February 18, 2013 I went for about a year with 5" up front and stock uppers/lowers. Not ideal but it will drive like that. I would recommend at least lowers and an adjustable trac bar. Also don't forget brake lines, you can pull down the hard lines but your best bet will be longer hoses. Thanks for the reply mnkyboy! I was hoping you would join in on this because i've read a bunch of your threads recently, and seems you know suspensions pretty well on the Che's. I did forget to mention that the longer hoses were on the way. i ordered them last week so should be here later today. I went out and measured my 4" lift lowers on my TJ, and appears they are only 1/4" longer that stock. So I could see where i could get by with the OEM ones for a while until i recover from the wallet hit the new paint and body work is costing. So back to the track bar... am I going to need a new bracket and adjustable bar or just a bar and use the same bracket? Reason I ask, is that Rusty's has a kit with frame stiffener, adj. bar and HD mount for $220, whereas the tack bar alone is $130. I'm thinking I can use the OEM mount for now, and upgrade the mount later as necessary correct? Link to comment Share on other sites More sharing options...
danbyrambler Posted February 18, 2013 Share Posted February 18, 2013 Here's the CA info Control Arm Length Chart Lift...........LCA UCA Stock ......15.75.......15 ¾........15.00.......15 2”.............15.92.......16........... 14.88.......15 3”............ 16.09.......16.......... .14.92.......15 4”.............16.33.......16 3/8......15.03.......15 4.5” .........16.47.......16 ½........15.11.......15 5”.............16.62.......16 5/8......15.21.......15 ¼ 6” ............16.97.......17........ ..15.44.......15 ½ 7”.............17.36.......17 3/8......15.74.......15 ¾ 8”.............17.81.......17 ¾........16.09.......16 9”.............18.30.......18 ¼........16.50.......16 ½ 10” ..........18.82...... 18 ¾........16.96.......17 Link to comment Share on other sites More sharing options...
Biotex Posted February 18, 2013 Author Share Posted February 18, 2013 Thanks Danby, I bet that was in a sticky somewhere huh? :doh: I just ordered a: Rubicon Express RE1600 Front Adjustable Track Bar Jeep XJ/MJ/ZJ/TJ for $126 with free shipping. That will go nicely with my RE springs. I think I will be able to make what I have work for now until after the painting. Link to comment Share on other sites More sharing options...
jvd Posted February 18, 2013 Share Posted February 18, 2013 Hey biotex did those new packs seriously give you that much lift? If the packs give that much lift, looks like I'm going to have to smooze the boss to get steering upgrade now Link to comment Share on other sites More sharing options...
Biotex Posted February 18, 2013 Author Share Posted February 18, 2013 Hey biotex did those new packs seriously give you that much lift? If the packs give that much lift, looks like I'm going to have to smooze the boss to get steering upgrade now No, just got 1.5" of lift in the rear. But when I measured, to get the truck near level, took 4" added to the front. I guess the factory had them higher in the rear, but I don't ever haul anything heavy, so I prefer it to sit more level. The 4.5" lift springs were a lot cheaper than the 4" lift ones. Go figure! So, The 4.5" ones will settle in I'm sure. If not, I'll add a heavy front bumper... Talk about schmoozing the boss! :bowdown: Link to comment Share on other sites More sharing options...
danbyrambler Posted February 18, 2013 Share Posted February 18, 2013 It is in one form r another here/NAXJA/Pirate/JF - Forgot where I copied from - - - There's some wiggle/adjust room to be had with the LCA shims also - DK what tires you're running - You're prob gonna be able set pinion straight with DS with watcha got & Casters gonna be OK - DonH's got good info on checking that here on CC somewhere - Same for Toe - Toe is simplicity with anothers help, tape measure & couple straight edges like carpenters levels - - - I came up with a TB adjust/drop bracket from some where - for 3 to 5" lift - - - Yours 4 postage if you need it - - - Might want to ck the sway bar links as well - - - I'm not a suspension expert - - Just learned a few working on my stuff & taking advantage of the knowledge/opinions here - :thumbsup: Link to comment Share on other sites More sharing options...
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