warf90 Posted January 25, 2007 Share Posted January 25, 2007 I need some help, I had to install a new set of rear springs on my MJ because one of my old ones were broke. Any way the only new ones that I could find were I guess for the Metric Ton Package. They had a total of 5 leafs, 3 thin and 2 thick. I have removed the longer of the 2 thick ones and installed doing a spring over. It is still way too high. Between the new springs and spring over, it looks like it is at about 8-9 inches of lift, way too much for 33" tires. Would it work if I removed the other thick one to go down to the 3 thin springs? I am concerned if I do this I will have axle wrap. How long til they settle? Any one got any suggestions. Thanks Link to comment Share on other sites More sharing options...
jared Posted January 25, 2007 Share Posted January 25, 2007 what brand of spring did you install? just a replacment or a lift spring? a spring over should only give about 4-5'' max. Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted January 25, 2007 Share Posted January 25, 2007 Those extra leafs are pretty think. Because he is now SOA, he is getting lift from the extra helper thickness alone. But your right, not 8-9" :eek: . I would worry about wrap as well....how about removing the one ton helpers and putting in your old helper in there place? CW Link to comment Share on other sites More sharing options...
warf90 Posted January 25, 2007 Author Share Posted January 25, 2007 The springs were replacements and not lifted springs. I think I will try and install the old helper spring and see if it makes a difference. Thanks Link to comment Share on other sites More sharing options...
Oizarod115 Posted January 25, 2007 Share Posted January 25, 2007 i heard recently an XJ shackle will drop it a little bit, should be more than a 1" drop Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted January 25, 2007 Share Posted January 25, 2007 This is true. A XJ shackle is 3.25" - 3.5" eye to eye while a MJ is 4.5" - 4.75" eye to eye. So its closer to a 3/4 inch total drop.... CW Link to comment Share on other sites More sharing options...
feerocknok Posted January 25, 2007 Share Posted January 25, 2007 i heard recently an XJ shackle will drop it a little bit, should be more than a 1" drop But you can lose flex! Link to comment Share on other sites More sharing options...
BIGMASS Posted January 25, 2007 Share Posted January 25, 2007 Just an idea...Why not put the spring back together and install in factory configuration (i.e. spring under axle) :dunno: Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 26, 2007 Share Posted January 26, 2007 Just curious warf90, where did you get your new metric tonne springs? I recently installed a new set on my rig (factory configuration, SUA) and netted 2-1/2" of lift. I have no experience with SOA springs. Link to comment Share on other sites More sharing options...
warf90 Posted January 26, 2007 Author Share Posted January 26, 2007 I was just thinking about switching back to spring under and see how much lift it has. I already front 6" spring in place, so I don't think it will net that much lift, but who knows it might. I got the springs from Brighton Spring in Cincinnati. I called around and all the spring places told the only replacement springs that were available were the 5 spring pack with a payload number that I do not remember. My old springs were only a 4 spring pack. Obvisously they were for the Metric ton truck I beleive. When I get the front back together, I will expirement with a few ideas and suggestions that you guys gave and see what I can come up with. When I get the front back together I will take a good picture of it and post it. It will show how high it is. Link to comment Share on other sites More sharing options...
feerocknok Posted January 26, 2007 Share Posted January 26, 2007 I was just thinking about switching back to spring under and see how much lift it has. I already front 6" spring in place, so I don't think it will net that much lift, but who knows it might. I got the springs from Brighton Spring in Cincinnati. I called around and all the spring places told the only replacement springs that were available were the 5 spring pack with a payload number that I do not remember. My old springs were only a 4 spring pack. Obvisously they were for the Metric ton truck I beleive. When I get the front back together, I will expirement with a few ideas and suggestions that you guys gave and see what I can come up with. When I get the front back together I will take a good picture of it and post it. It will show how high it is. If it's really that tall, maybe go SUA and use a slightly longer shackle to compensate for the lost lift? Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 26, 2007 Share Posted January 26, 2007 I got the springs from Brighton Spring in Cincinnati. I called around and all the spring places told the only replacement springs that were available were the 5 spring pack with a payload number that I do not remember. If your 5-leaf springs were built using the original metric tonne spring specs for the earlier 2 thick leaf / three thin leaf configuration and a 9-1/2" arch, the payload is 1500#. See the MJ 5-Leaf Metric Tonne Leaf Springs thread in the Pub forum for all the specs. If you go back to the original SUA config, and use an extended shackle like the TeraFlex, you should expect a total lift of at least 3-1/2". Link to comment Share on other sites More sharing options...
BIGMASS Posted January 26, 2007 Share Posted January 26, 2007 Just throwing out another thought... You could use one leaf out of your new pack to replace the busted one in the old pack, swap out the same leaf in the other pack, and bobsyeruncle. :dunno: Link to comment Share on other sites More sharing options...
warf90 Posted January 26, 2007 Author Share Posted January 26, 2007 I measured a couple things on the rear. I have 33X12.50" tires on it now. From the top of the tire to the bottem of the fender flare is 12" and the fender flare has not been altered or moved up at all. From the ground to the top of the bed is 54 1/2". I should have measured before the installing the new springs and tires. I had 235 75 15 tires on it before the lift. So I do not know what the measurement would have been from the floor to the top of the bed. Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 26, 2007 Share Posted January 26, 2007 From a previous post: "Stock height: Measure from the top of the axle tube to the underside of the frame rail just inboard of the bump stop. For 4WD models this distance should be 9.2 inches, plus or minus 1/2". For 2WD models the dimension is 8.2" plus/minus 1/2"." After installing metric tonne springs my distance went from 8" to 11". My old springs were sagging a bit. Link to comment Share on other sites More sharing options...
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