Ball joint spacers might be a better option for the front. Unless you have a heavy front bumper/winch, etc. the heavier torsion bars will can a rougher ride:
- http://www.4crawler.com/4x4/ForSale/BallJointSpacer.shtml

Of course if your existing torsion bars are worn out, then upgrading might be a good idea, but bigger is not always better:
- http://www.4x4wire.com/toyota/tech/torsion_bars/

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
4Crawler OffRoad - 4x4Wire discount code