Cant install torsion bar insulator.. no clearance

jack the vehicle right up so the wheels are well clear of the floor
place vehicle on lack stands for safety
undo the torsion bar adjuster screw right off
turn the torsion bar with vice grips , stilsons etc until you get as much movement as possible in raising the wheel
slip it in the splines
lower the vehicle then adjust the screw until the vehicle is level

jack the car right up with the wheels off the floor
install the torsion bar with the adjuster bolt unscrewed all the way off
fit the bar and lower the car back onto the floor so that all the weight is on the torsion bar
it should be sitting a bit low at this point
adjust up the adjuster bolt to when it sits level
if there is not enough adjustment the jack up the car again
let the adjuster right off an this time use a pipe wrench ( stiltsons ) to turn the bar against the stop plate a spline then insert it into the housing
this preloads the bar before any adjustment
lower the car and again adjust the bolt
EXTREME CARE AND VEHICLE STANDS SHOULD BE USED AS THE CAR COLLAPSING CAN CRUSH THE PERSON UNDERNEATH

Autozone.com has some good 'how to's' if you check there.

1995-2005 Models NOTE: The following procedure requires the use of the torsion bar unloader tool No. J-36202 or equivalent.

1. Raise and safely support the vehicle.
2. Remove the transmission shield, if equipped.
3. Install a torsion bar unloader tool to relax the tension on the torsion bar adjusting arm screw; record the number of turns necessary to properly install the tool. Remove the adjusting screw and the unloader tool.
4. Unfasten the lower link mount nut from one side, then disengage the torsion bars. NOTE: Note the direction of the forward end and side of the torsion bar being removed
   
5. Remove the lower link nut from the opposite side.
6. Remove the lower link mount, upper link mount nut, upper link mount and then unfasten the torsion bar from the frame.

To Install:

1. Install the torsion bar and support.
2. Install the upper link mount and mount nut.
   • Tighten the nut to 33 ft. lbs. (45 Nm) on 1995-96 models and 48 ft. lbs. (65 Nm) on 1997 and later models.
3. Place a jack under the torsion bar to release tension, then install the lower link mount bushing and nut.
   • Tighten the nut to 13 ft. lbs. (18 Nm) on 1995 models, 50 ft. lbs. (68 Nm) on 1996-98 models and 37 ft. lbs. (50 Nm) on 1999 and later models.
4. Install the torsion bar unloader tool and tighten the tool against the adjusting arm the same number turns recorded earlier, then remove the tool. This loads the torsion bars.
5. Install the transmission shield, if removed.
6. Remove the jackstands and lower the vehicle.
7. Check and adjust the Z height as outlined in the wheel alignment portion of this section.

Step 1 Jack up the vehicle on the wheel to be adjusted, and set the frame rail onto a jack stand. This is to release the stress on the torsion bar so it can be adjusted easily.

Step 2 Crawl underneath the vehicle and locate the torsion bar mount on the frame. There will be a bolt in the center of the mount, pointing upward. This is the adjusting bolt, and it will accommodate a large-sized socket driver.

Step 3 Adjust the torsion bar. Turning the adjustment bolt clockwise will tighten it, raising the amount of load that can be placed on the bar. This will raise the vehicle when it is taken off the jack stand. Turning it counterclockwise will lower the available spring rate and cause the car to sit lower. Turning it too far in either direction can cause problems, so follow the specific vehicle's manufacturer guidelines when making wide adjustments. Normally, only one full turn will be enough to give the desired result.

Step 4 Lower the vehicle, and check the clearances of the frame to the ground. They should be the same for both sides. If they are not, then more adjustment will be necessary to the torsion bar adjustment bolts.

http://www.readylift.com/t-torsion_bar_keys.aspx

The torsion bars have rubber insulators, or mounts that are located on the frame crossmember. These mounts are prone to seperate or break.
Good luck

SAFELY RAISE AND SUPPORT REAR OF CAR ON JACK STANDS. REMOVE THE TORSION BAR TO KNUCKLE BOLT WASHER AND BUSHING.REMOVE TORSION BAR TO CHASSIS BOLT.REMOVE BAR FROM THE CHASSIS.TO INSTALL.INSTALL TORSION BAR TO THE CHASSIS TORQUE THE NUT / BOLT TO 48 FT LBS.PLUS ADDITIONAL 120 DEGREE TURN.TORSION BAR TO THE KNUCKLE TORQUE THE BOLT TO 51 FT LBS.

to my way of thinking, turning the torsion bars will only lift the body....if I wanted more clearance on the axle and the differential, I would put taller and bigger tires on the front end to give more clearance on where you want it.....

I have a 2006 Saturn Ion. There are two torque bars in the trunk. One has the insulation on it and the other comes without insulation. Using a bungee cord, I hooked one end above my license plate in a gap and the other end I just stretched until it reached my back door and I shut the door on it. That is how I held the trunk up. Next, I took the rod without the insulation and put the rounded loop part of the bar to the right of the trunk. I rested the other end of the bar that has the squared loop in the middle slit toward the left side of the trunk. I then used one hand to lower the trunk a little to get the right end in place easier. There is the very end of the bar on the right side of the trunk that goes in the slit on the roof of the trunk, the rounded loop that goes under that hook on the bar of the trunk, and just to the left of that loop where the rounded part becomes straight again that goes on the upper most slit just under the roof of the trunk. After all that is in place, go to the left side of the trunk near the three slits and push up as hard as you can to get the left part of the bar to rest on the lower slit and then you\'re snapped in. Repeat for the piece with the insulation on it but reverse what I said about right and left side. You have to install the pieces in that particular order or it won\'t work out. You might say Jesus Christ a few times too but have patience. It is worth it.

The torsion bar itself does not have to be indexed,it can be installed in any way,but the end that contains the adjuster has to be positioned in the correct way to attain full adjustment,and correct ride height.The best way to do this is to look and study carefully before removal,so that everything is reinstalled as it was.If that wasn't done in the beginning before removal,it's still ok as the torsion bars can be removed and replaced,trial and error style,until it's right.The thing that changes where the ride height is,is WHERE the adjuster end is,when the torsion bar is fitted to it.I have a 73 Plymouth with torsion bars,so i know what you are going through.Just position both adjuster ends about level when engaging the torsion bars into them.They should slip in relatively easy unless rusted up badly.It is ok to use some grease too,to allow easier install.Their is also a tool available that grasps the torsion bar to assist in removal or install.After install,make sure to replace the retainer clips back in to secure the bars.