rubicon springs in a 2.5TJ

[Muddy Maki]

ok so i have a set of newish rubicon sprins that i plan on puting in my 2.5l tj.
i have been told that the spring rates are difrient for the rubicon witch could net me an extra inch or maybe more of lift in my littel four banger.

first how true is this has anyone done it?

second if i installed a transfer drop and the rubicon springs with my 2" bb would my factory controll arms hold up to the 3" of lift.

the idea i am thinking of is install a transfer drop and track bar relocation brackets to run the combined 3" of lift utill i can aford an sye and controll arms(about a year).

what do ya think?
do it or leave the springs sitting till i can aford the parts or do it?

[Tonka]

1" motor mount lift, 1" body, 2" spacer = 33's with no t-case drop, and no trackbar issues.

[sglide]

you should be fine at 3"
might handle just a little funny due to the slightcaster change

[StartingLine]

I've got a 1" body and 2" BB on mine and have no steering or driveline problems at all. The only issue i have is the tcase linkage. Once in a while it'll pop out of low. I don't think the Rubicon springs will make that much of a difference.
http://www.383ftp.com/Pics/Jeep/post%20lift.jpg

[Big Daddy Rubicon]

First off, I have only done around a 100 tj lifts in the last 3 years. The rubicon springs will only at most give you 3/4" and I have seen 1/2" too. What are you trying to do?? Run 33" tires? This is what I have done on a few that has worked out great. Rubicon springs all the way around with a 2" BB, no problems with trac-bars but you do need to get a kit that has shocks. I really like the Rubicon Express lift as it comes complete with good mono shocks. Problems are had by most that piece it together and don't get matching parts. You will need to get a front end alinment as 1" in lift will cause about 3/8" of toe-in. Hope this helps you out.

[Big Daddy Rubicon]

I've got a 1" body and 2" BB on mine and have no steering or driveline problems at all. The only issue i have is the tcase linkage. Once in a while it'll pop out of low. I don't think the Rubicon springs will make that much of a difference.
http://www.383ftp.com/Pics/Jeep/post%20lift.jpg

Smiple fix, crawl under your jeep and loose the 13mm bolt on the shifter to adjust.

[Muddy Maki]

1" motor mount lift, 1" body, 2" spacer = 33's with no t-case drop, and no trackbar issues.

allready running 33's on 2"bb:ha:
minnamal rubing due to rim backspacing. benn runng this way for a few years. just want a littel more lift for cheap. asked for a bl for x mas dident get it. so i thought i might just install the rubicon springs.

[BIGBEN]

as a side note, i replaced the front springs on my tj with springs from an xj. gave a little boost and got rid of the front end sag tj seem to have.

[redmud]

Mine's on 3" ish inches of lift with stock control arms. You'll be fine, but it is wearing out my LCAs pretty fast, so you might want to keep it in the back of your head that you'll need to do control arms down the road. I think Rusty's makes the cheapest off the shelf arms.

*I guess I could point out that my control arms have 307000 miles on them, which might actually be what's wearing them out!

[xjmichigan]

do it, you'll like the results

[Tonka]

Mine's on 3" ish inches of lift with stock control arms. You'll be fine, but it is wearing out my LCAs pretty fast, so you might want to keep it in the back of your head that you'll need to do control arms down the road. I think Rusty's makes the cheapest off the shelf arms.

*I guess I could point out that my control arms have 307000 miles on them, which might actually be what's wearing them out!

I'm at roughly 3" suspension and stock arms. 97960miles (roughly + or - 10 or so) and no control arm issues.

[redmud]

I'm at roughly 3" suspension and stock arms. 97960miles (roughly + or - 10 or so) and no control arm issues.

My control arm issues are more from the fact that my Jeep has a few remaining parts (T-case and some suspension bushings) that are original, and my TJ has 300K on the clock. Their just worn out, and I've been putting off replacing them.

Call Rustys, for example and they'll tell you that 3" is okay with stock arms. I don't disagree with that- I personally want to upgrade mine because the front axle did move back a bit at 3 1/4" or so of lift, and the stockers are really weenie.

[Big Daddy Rubicon]

Just a FYI, When lifting a TJ with a small or little lift (like Rubicon spring and spacer) do the complete lift and get it sitting back on all four tires. So all the weight is back on the jeep. Crawler under the jeep and loosen all the control arm nuts and bolts, trac-arms all at one time, then tighten them back up. What this does is take the strain out of the rubber in the bushings which will make them last longer. If you don't loosen the bolts and take the strain out the rubber in the bushings. You will cut the life of the bushings.

[Muddy Maki]

Just a FYI, When lifting a TJ with a small or little lift (like Rubicon spring and spacer) do the complete lift and get it sitting back on all four tires. So all the weight is back on the jeep. Crawler under the jeep and loosen all the control arm nuts and bolts, trac-arms all at one time, then tighten them back up. What this does is take the strain out of the rubber in the bushings which will make them last longer. If you don't loosen the bolts and take the strain out the rubber in the bushings. You will cut the life of the bushings.

yup causing them to tear and crack prematurely. this is someting to be done with all suspension components containing rubber or poly bushings during service or replacement. :thumbsup: