Posted: Nov 09 2007 at 6:39am | IP Logged

The only major problem is what are you going to line up the axle with?  They design springs  to have a pilot hole or knob to use to line up the axle and keep it from wandering. 

Now you might have one option.  There is a member on here that converted his frontier in a 4x4.  If you can find his post, you can see what he did to do the spring/axle conversion.

Posted: Nov 12 2007 at 9:53am | IP Logged

this will help with the front

Re-Indexing Torrision Bars

1. JACK UP THE FRONT OF THE VEHICLE. THIS HELPS IN REMOVING
   PRELOAD ON THE BAR AND ALLOWS FOR REMOVAL OF THE TORSION
   BARS.
2. BACK OFF ADJUSTER BOLT.
3. NOTE THE LOCATION OF THE ADJUSTER. THIS MAKES INDEXING
   EASIER BECAUSE YOU CAN COMPARE LOCATIONS OF THE ADJUSTER.
4. REMOVE REAR ADJUSTER OR REMOVE THE TORSION BAR FROM
   FRONT ANCHOR, WHICH EVER IS EASIER FOR YOUR MODEL.
5. IT IS SOMETIMES NECESSARY TO HAVE SOMEONE PUSH DOWN ON
   THE TIRE TO GET THE SUSPENSION AT FULL DROOP. THIS WILL HELP
   TO GET MORE ADJUSTMENT IF YOU NEED IT WHILE RE-INDEXING.
6. REINSTALL TORSION BAR OR ADJUSTER SO THAT YOU HAVE MOVED
   THE REAR ADJUSTER AWAY FROM THE ADJUSTER BOLT ANCHORING
   SITE, WHICH IS USUALLY A CROSS MEMBER.
7. TIGHTEN ADJUSTER BOLT UNTIL PRELOAD IS FELT ON TORSION
   BAR.
8. LET VEHICLE DOWN AND CHECK RIDE HEIGHT. IF YOU NEED MORE,
   JACK THE VEHICLE UP AND TIGHTEN ADJUSTER BOLTS UNTIL
   DESIRED RIDE HEIGHT IS ACHIEVED.
9. BOLTS SHOULD BE CHECKED AND TIGHTENED PERIODICALLY.

On the rear you could just do a set of shackles from here

http://www.purenissan.com/h_d__shackle_2wd.htm

Posted: Nov 12 2007 at 11:45am | IP Logged

Zink-Runner wrote: yea that will be great man. is there a site you would recommend that could walk me throught the installation process?

of what?

Posted: Nov 13 2007 at 8:08am | IP Logged

there should be directions with the shackles when you get them when I did my lift I did not use shackles To be totally honest if all your wanting to do is fit bigger tires get a 3" body lift.