coon.hunter_21 Posted April 15, 2011 Share Posted April 15, 2011 there has probably been this same post on here before so I'm sorry.but my question is.i want to do a spring over axle lift.but i only want 4" or 4.5". is there a way i can build a spring pack from other leafs off of other vehicles so i don't have to spend the extra money on a new spring pack?? i don't want to do a add a leaf but I'm open for input on them? Link to comment Share on other sites More sharing options...
Motion Offroad Posted April 15, 2011 Share Posted April 15, 2011 viewtopic.php?f=2&t=29766&start=15 Link to comment Share on other sites More sharing options...
coon.hunter_21 Posted April 16, 2011 Author Share Posted April 16, 2011 I'm sorry but that didnt answer my question.. Link to comment Share on other sites More sharing options...
mnkyboy Posted April 16, 2011 Share Posted April 16, 2011 A SOA is gonna give you around 5",if you put on 2wd leaves that should put you around 4"-4.5" vs a stock 4X4 Link to comment Share on other sites More sharing options...
NewfieMJ Posted April 16, 2011 Share Posted April 16, 2011 if you put on 2wd leaves that should put you around 4"-4.5" vs a stock 4X4 Â Â This is wrong . there is a minimum gain of 4.5" (D35 w/2.75"tube diam) , then , it's plus whatever height the spring perch over the axle . Mine is 1" for example . My gain would be 5.5" on a SOA with a 2WD Â The SOA doesn't care if your 4x4 or not . Lift is from where you started to where the end result finishes . Â Yes , a 2wd is 1" lower than a 4x4 Comanche . But , you will NOT gain extra lift from doing a SOA because your 4x4 . Â I don't know who started all this , but consider it an urban legend . Measure it !! Link to comment Share on other sites More sharing options...
mvusse Posted April 16, 2011 Share Posted April 16, 2011 IIRC, with Ruffstuffspecialties perches (that sit higher than stock) on a 3" 8.25 axle tube I gained 5.25" of lift IIRC, but it could have been 5.75". Let's for the sake of argument say 5.5". That means that with 2wd leafs (1" lower than 4wd ones) you will gain 4.5" over stock 4wd setup. Â Either way, our trucks are raked forward quite a bit from the factory, and you will still want close to 6.5" up front for it to look level. Link to comment Share on other sites More sharing options...
NewfieMJ Posted April 16, 2011 Share Posted April 16, 2011 My 2WD sits in my shop , from the bottom of my spring to the top of the axle measure 4.5" . I could only gain a 4.5" lift if I weld the springs directly to the axle with no perch . It's 4.5 plus the perch height . Â What does it matter what springs you have . Moving an object a certain distance is moving an object a certain distance , no matter what the object . Link to comment Share on other sites More sharing options...
NewfieMJ Posted April 16, 2011 Share Posted April 16, 2011 I'm sorry but that didnt answer my question..  Accually , it did .  "It's going to be VERY hard to get ~4" of lift with SOA using MJ leafs. You'll have to use FSJ leafs or a Hybrid XJ/MJ pack (MJ main with XJ others). Even with a 2WD MJ pack your going to net 5"+ of lift." Motion Offroad  BTW , note the last part of this quote , this man knows how to use a measuring tape :peek: Link to comment Share on other sites More sharing options...
Dirteatr717 Posted April 16, 2011 Share Posted April 16, 2011 2wd leafs are flatter therefor giving you less lift... If you really want to stay at 4.5 mix Cherokee leafs in with your leaf pack and use a shorter perch.... Link to comment Share on other sites More sharing options...
mvusse Posted April 16, 2011 Share Posted April 16, 2011 My 2WD sits in my shop , from the bottom of my spring to the top of the axle measure 4.5" . I could only gain a 4.5" lift if I weld the springs directly to the axle with no perch . It's 4.5 plus the perch height . Â What does it matter what springs you have . Moving an object a certain distance is moving an object a certain distance , no matter what the object . Â You misunderstand what I''m saying. 2wd leafs sit the truck 1" lower than 4wd leafs. So gaining 5.5" going spring over with 2wd leafs (lifted 5.5") is only 4.5" higher than a stock 4wd truck. Â Either way, to still go SOA and sit lower yet, he will have to bastard pack leaf packs, possibly with XJ leafs in the mix. Â BTW. I use a tape measure for a living. The tape doesn't lie, just your interpretation of my words. Link to comment Share on other sites More sharing options...
NewfieMJ Posted April 16, 2011 Share Posted April 16, 2011 I hear ya , just had to re-read the fine print ;) . We're on the same page :thumbsup: Link to comment Share on other sites More sharing options...
mnkyboy Posted April 16, 2011 Share Posted April 16, 2011 if you put on 2wd leaves that should put you around 4"-4.5" vs a stock 4X4 Â Â This is wrong . there is a minimum gain of 4.5" (D35 w/2.75"tube diam) , then , it's plus whatever height the spring perch over the axle . Mine is 1" for example . My gain would be 5.5" on a SOA with a 2WD Â The SOA doesn't care if your 4x4 or not . Lift is from where you started to where the end result finishes . Â Yes , a 2wd is 1" lower than a 4x4 Comanche . But , you will NOT gain extra lift from doing a SOA because your 4x4 . Â I don't know who started all this , but consider it an urban legend . Measure it !! Â You we're over thinking it a bit,The OP has a 4X4 so if he went out to his truck and put your 2wd springs in it his truck would then sit about 1 " lower then it does now. Link to comment Share on other sites More sharing options...
NewfieMJ Posted April 16, 2011 Share Posted April 16, 2011 Ok , I understand what your saying too .  I've been fighting the "foot in mouth" syndrome for years , guess I need stronger meds :help: . Not meaning to argue , guess I needed to understand it better .  Correct me if this is wrong , cause I think I got it this time  Spring over axle conversion lift heights :  2wd stock springs - 5-5.75" depending on perch/axle choice 4wd stock springs - 5-5.75" depending on perch/axle choice 4wd w/2wd springs remove 1 inch lift height over-all 2wd/4wd with MJ main/XJ others can reduce lift up to another 1" Stock XJ shackles will lower the jeep another (approx) 1" but are recomended against (flip at flex) Reference pics : 88 2wd MJ D35 , it measured 4.5" , the angle is off in the pic 91 4wd MJ D44 , it measured 4.75 , again , bad angles  Leaf spring options :  add-a-leaf : Hell's Creek or Rusty's . Mostly combined with a 1" lift shackle for approx 3" of lift  Spring pack's :4" at Rusty's , Custom from Hells creek but nothing being produced for up to 6 more weeks .  Shackles : 2" longer means 1" ride height increase Most XJ shackles are required to be a 2" lift shackle to make approx 1" lift to a MJ Link to comment Share on other sites More sharing options...
kyleag89 Posted April 16, 2011 Share Posted April 16, 2011 I think a 2" XJ lift shackle will only give you 0.5" on the MJ. The XJ shackle is 3.5" stock and the MJ is 4.5" stock. Link to comment Share on other sites More sharing options...
mvusse Posted April 16, 2011 Share Posted April 16, 2011 Also, the MJ axle sits forward of the center point of the springs, so for 1" lift you need MORE than 2" longer shackle. My 2" Chevy drop shackles gave me about 3/4" lift. Link to comment Share on other sites More sharing options...
kyleag89 Posted April 16, 2011 Share Posted April 16, 2011 So basically a 2" XJ lift shackle will give you close to 0" of lift. Link to comment Share on other sites More sharing options...
mvusse Posted April 17, 2011 Share Posted April 17, 2011 About 3/4". A 2" XJ lift shackle would be 4" longer than a stock XJ shackle, or roughly 7" to 7.5" long. This is about the same as a Chevy 2" drop shackle. IIRC my Chevy drop shackles measure 7.25" and gave me 3/4" lift. Link to comment Share on other sites More sharing options...
coon.hunter_21 Posted April 18, 2011 Author Share Posted April 18, 2011 alright.ill keep them ideas in mind.and are the add a leaf lifts like rough country makes any good?? i cut fire wood and haul scrap metal so my mj takes a load a lot.will the add a leaf decrease my hauling ability? Link to comment Share on other sites More sharing options...
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