How to Adjust Tie Rod Ends for Toe
Toe is the angle of the front tires relative to each other when viewed from above. On most cars and light trucks, you set it by changing the effective length of the tie rods. The mechanical job is simple, but small changes have a large effect on tire wear and steering feel. This guide explains how the adjustment works, what affects it, and what an owner can sensibly do before a professional wheel alignment.
The short answer
To adjust toe, loosen the jam nut that locks the outer tie rod end to the inner tie rod. Then rotate the inner tie rod, or the adjusting sleeve on some trucks, to lengthen or shorten the assembly. When the toe reading is within the manufacturer's specification, hold the tie rod in position and tighten the jam nut to the specified torque. Both sides are normally adjusted, because total toe is shared between the two wheels and the steering wheel must stay centered.
Measurement is the important qualification. Toe specifications are small, and a fraction of a turn makes a noticeable difference. A home adjustment is best treated as a way to get the vehicle close, for example after replacing a tie rod end. It should be followed by a proper alignment on calibrated equipment. The correct toe value, and whether toe is the only angle that needs attention, come from the vehicle's service information, not from a general rule.
How tie rod length sets toe
On a rack-and-pinion system, each inner tie rod screws into the end of the steering rack. The outer tie rod end threads onto the inner rod and connects to the steering knuckle. Turning the inner rod within the outer end changes the distance between the rack and the knuckle. With the steering wheel held still, the rack stays in place, so that length change pivots the wheel slightly about its steering axis and moves the front of the tire inward or outward.
The direction depends on the layout. If the tie rods sit behind the wheel centerline, lengthening a rod pushes the back of the tire outward and adds toe-in. If they sit ahead of the centerline, lengthening a rod adds toe-out. Older and heavier vehicles with a parallelogram steering linkage use threaded adjusting sleeves between the tie rod ends. Rotating a sleeve lengthens or shortens the rod in the same way. Confirm your vehicle's layout before deciding which way to turn.
What changes the result
Suspension position matters. Toe changes as the suspension moves through its travel. Take readings with the vehicle on a level surface, at normal ride height, and with the suspension settled. A measurement taken with the wheels hanging on jack stands is misleading. Ride height that differs from stock also alters toe and can make the factory value hard to reach without other corrections. Common causes include lift kits, lowering springs, worn springs and heavy loads.
Camber and caster also affect toe. On vehicles where those angles are adjustable, alignment technicians set them first and toe last, because changing camber or caster moves toe. Bent components, worn bushings or damaged mounting points can also defeat the adjustment. In those cases the tie rods may show an apparently correct number while the vehicle still pulls or wears its tires unevenly.
This procedure applies to front toe on vehicles with conventional steering linkages. Rear toe on independent rear suspensions is set with separate links, eccentric bolts or shims. Some vehicles have little or no rear toe adjustment at all. Those are different jobs with their own procedures.
Inspection and preparation
Start with an inspection. Raise the vehicle at the manufacturer's lift points and support it on jack stands at the specified locations, never on the jack alone. With the wheels off the ground, grip each front tire at the 3 and 9 o'clock positions and rock it. Movement you can see or feel at a tie rod end or inner tie rod indicates joint play. Worn joints let toe wander while driving, so replace them before making any adjustment. Also check the rack boots for tears and the tie rod threads for corrosion. Apply penetrating oil to the jam nuts if they look seized.
Note where the jam nuts sit. If you are replacing an outer tie rod end, count the turns needed to remove it so the new part can go back in roughly the same position. Then lower the vehicle and roll it back and forth a short distance to settle the suspension. Center the steering wheel, and use a steering wheel holder to keep it from moving while you work.
Making the adjustment
Loosen the jam nut on each side. On many cars you can reach it with the vehicle on the ground and the wheels pointing straight ahead. If you have to raise the vehicle, lower it and settle the suspension again before taking each reading. Hold the outer tie rod end steady and turn the inner rod by its wrench flats, or turn the adjusting sleeve on linkage-type systems. If the rack boot is clamped to the inner rod, loosen the small boot clamp first so the boot does not twist and tear.
Make small, equal changes on both sides to keep the steering wheel centered, then re-measure. Home methods can show whether toe is close and which direction it needs to move, but they are less precise than alignment equipment. Examples include toe plates, or a tape measure across the tire tread at hub height at the front and rear of the tires. When the reading is right, hold the tie rod so it cannot rotate. Tighten the jam nut to the fastener specification in the service information, and refit any boot clamps. If the steering wheel is off-center afterward, lengthen one tie rod and shorten the other by the same amount. Do not correct it by moving the wheel on its splines.
Limitations and next steps
This article cannot give the correct toe value or torque figures for your vehicle, because they vary by make, model, trim and sometimes production date. That information is in the factory service manual or a professional repair database. Without accurate readings and the right specification, a home adjustment is an approximation. Even a small error can wear the inner or outer shoulders of the tires.
Book a professional wheel alignment after any tie rod replacement or adjustment. Go sooner if the vehicle pulls, the steering wheel is off-center or feels loose, or the tire wear pattern changes. Also seek help if any of the following apply: the jam nuts are seized, the threads are damaged, joint play remains after replacing parts, or the ride height has been modified. The same applies if the vehicle has a steering angle sensor or driver-assistance systems that may need recalibration after alignment work.