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UNIBALL UPPER CONTROL ARMS, FITS TOYOTA LANDCRUISER UZJ100, HDJ100 IFS 98-2007 & LX470.

The short-comings of OE IFS:
In 1998 Toyota released the all new 100 series Land Cruiser to replace its solid axle 80 series models. While providing a much smoother and better handling on road ride, the IFS proved to be very limited in suspension travel. Most “lift kits” for the IFS setup simply raise the frontend by means of adjusting/replacing the torsion bars, which actually leaves you with less down-travel. This is because even aftermarket suspension kits utilize stock length shocks. The problem is now that the preloaded suspension will fully extend the shocks when driving over rough roads and potholes, riding poorly, and leading to premature shock failure. The only way to improve suspension travel is to run longer than stock shocks. The factory upper control arms become a limiter as they will hit the shock body if using longer shocks. With raised suspension height the OE upper balljoint will operate at excessive angle and wider tires many times will not clear the factory upper control arms, and require spacers to be fitted. The OE balljoint also can separate if a shock were to break, leading to catastrophic failure of suspension, steering, and cv axle. To replace the OE upper ball joints, you must purchase the whole arm from Toyota, and the cost per pair is nearly what the high performance Uniball arms cost.
The Solution:
To solve the extreme ball joint angle of the stock arms the uniball cup is clocked to run level on vehicles with 2-3" additional ride height. With the proper shock setup, this allows up to 50% increase in down travel over suspension kits that use stock length shocks.
The arms are 100% BOLT-ON using a taper adapter to fit in the stock tapered balljoint location in spindle. That's right no drilling, no welding, no tapping. Arms allow for proper alignment. They are also fully serviceable, as the bushings and uniballs can easily be replaced. The arms are constructed of Chromoly DOM tubing for strength versus the flimsy OEM stamped steel arms. Carl's UCA design allows for a lower profile, thus providing additional clearance for larger tires, and/or shocks. The arms utilize a 1" I.D. Teflon lined uniball which has been proven strong, reliable, and long lasting, for years in all areas of use from Highway, to Baja trucks and more.

*Care must be taken to prevent over extension of CV joints, and steering parts. Differential drop recommended.

Part # JTOUCA-TLC100 UNIBALL UPPER CONTROL ARM, FITS 1998-2007 TOYOTA LAND CRUISER UZJ100, LEXUS LX470 $999 pair

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Prior to the production arms, I ran several prototypes. After testing several prototypes, the design has been in use on my own daily driven 99 UZJ100 in conjunction w/ fox remote reservoir shocks, slee diff drop, limiting straps, 35" tires, 4.88 and more. They've been subjected to 40K plus miles of use, from -10F ice/snow driving to 100 degree desert highspeed washboard, muddy trails and more. I live IN the Cascade mountains and frequently take rough washboard / rutted FS/ORV roads as shortcut between towns. Prior to the arms and shocks I was not happy with the suspension on rough roads since the downtravel was so limited and topped out the shocks constantly. If you have stock length shocks with 2-3" raised height, then the tbars still have a lot of force on the shocks at full extension/droop. It is SOOO much better now