How to adjust toe-in

The maintains on a John Deere 108 including the front wheel toe is very similar to toeing a vehicle. Measuring the two front wheels back and front to find out how far off the wheels are, when toeing the wheels in there is an adjustment bolt at the back of the wheel. After adjusting the toe---measure the two wheels again, if still off repeat adjustment until they are pretty close to the same measurement

Some of those are adjusted by bending the tie rod.

cant adjust unless the tie rod ends are adjustable
you have to replace link arms ,they are bent

Toe in / out and all other wheel alignment parameters must be checked and adjusted by a specialist shop that uses specialized equipment to do the adjustments. To your question, yes, a front end alignment by a good auto workshop will bring them back in line.

The toe is adjusted by the tie rod ends connected to the gear box.
Some adjustment is possible where the tie rod ends connect.

There should be an adjustment with a lock nut and the ability to spin the tie rod to adjust the toe inward to compensate for the outward toe that you have. Best to have a 4 wheel alignment machine to check out the exact measurements, say at Sears Auto for instance.

The Toe In/Toe Out will have to be adjusted (if the steering rods to each front wheel have sleeves), just like on a car.

Toe-in is the operating angle of front wheels on a riding tractor. If the front edge of the wheels point inward, towards each other, then the wheels have toe-in. If the front wheels point outward, the unit has toe-out (or negative toe-in). Adjustment of toe-in is necessary to maintain proper steering control.
Unlike automobiles, our tractors have pre-set camber and caster settings. Therefore no camber or caster adjustment is necessary.
Acceptable toe-in adjustment range for all of our lawn & garden tractors is anywhere between 1/16"-5/16". With 1/8" serving as the optimal range.
Detailed toe-in adjustment procedures for the various models of tractors are reviewed in the "Adjustments" section of the Operators Manual for the tractor.
If tires are not toed-in properly after adjustment, it is likely that other part(s) need service or adjustment. axles, wheel bushings, control arms and other steering components may be worn or damaged and will need inspection. Service these items as needed.
You haven't stated your make and model, so I can't send you the manual with the exact procedure for your machine.

Before making wheel alignment adjustment, perform the following checks:

1. Tires should be equal in size and runout must not be excessive. Tires and wheels should be in balance, and inflated to manufacturer's specifications.


2. Wheel bearings must be properly adjusted. Steering linkage and suspension must not have excessive looseness. Check for wear in tie rod ends and ball joints.
3. Steering gear box must not have excessive play. Check and adjust to manufacturer's specifications.
4. Vehicle must be at curb height with full fuel load and spare tire in vehicle. No extra load should be on vehicle.
5. Vehicle must be level with floor and with suspension settled. Jounce front and rear of vehicle several times and allow it to settle to normal curb height.
6. If steering wheel is not centered with front wheels in straight-ahead position, correct by shortening one tie rod adjusting sleeve and lengthening opposite sleeve equal amounts.
7. Ensure wheel lug nuts are tightened to torque specifications

Ride Height Adjustment

Before adjusting alignment, check riding height. Riding height must be checked with vehicle on level floor and tires properly inflated. Passenger and luggage compartments must be unloaded. Bounce vehicle several times, and allow suspension to settle. Visually inspect vehicle from front to rear and from side to side for signs of abnormal height.
Measure riding height. See figure. Riding height between left and right sides of vehicle should vary less than 1′ (25.4 mm). If riding height is not within specification, check suspension components and repair or replace them as necessary.
Wheel Alignment Procedures

Honda recommends using commercially available computerized 4-wheel alignment equipment. Follow equipment manufacturer instructions to obtain vehicle alignment settings. Use following procedures for necessary adjustments.
Civic Camber Adjustment
Compare camber settings with vehicle manufacturer recommendations. If camber is incorrect, check for bent or damaged front suspension components. Replace faulty components. Recheck camber.
Civic Caster Adjustment
DO NOT use more than 2 shims. If more than 2 shims are required to adjust caster angle, check for bent or damaged suspension components.
Compare caster settings with vehicle manufacturer recommendations. If caster is incorrect, check for bent or damaged front suspension components. Replace faulty components. Recheck caster.
Civic Toe-In Adjustment

1. Secure steering wheel in straight-ahead position. Measure front wheel toe-in. If adjustment is needed, loosen tie rod lock nuts. Turn both tie rods equally in the same direction until front wheels are in straight-ahead position and toe-in reading is correct. Tighten tie rod lock nuts. Reposition tie rod boots if twisted.
2. Ensure parking brake is released. Check rear wheel toe-in. If adjustment is needed, hold adjusting bolt on rear compensator arm and loosen lock nut. See figure. Adjust rear toe-in by sliding rear control arm until rear toe-in is correct. Install NEW lock nut, and tighten it while holding adjusting bolt.

Wheel Alignment Specifications

• Camber - Measurement in degrees.
  • Front: 0 (range -1 to 1)
  • Rear: 0.33 (range -1.33 to 0.67)
• Caster - Measurement in degrees.
  • 1.17 (range 0.17 to 2.17)
• Toe-In - Measurement in inches (mm).
  • Front: -0 (0)
  • Rear: 0.08 (2.0)
• Toe-In - Measurement in degrees.
  • Front: 0.00 (range - 0.16 to 0.16)
• Toe-Out On Turns - Measurement in degrees.
  • Inner: 41.00
  • Outer: 33.50

Torque Specifications Ft. Lbs (N.m)

• Rear Control Arm Adjusting Bolt: 48 (65)
• Spindle Nut: 136 (185)
• Tie Rod Lock Nut: 41 (55)
• Wheel Lug Nuts: 80 (108)

hope this helps you out.

A front end alignment is needed if the wheel is off centered

Alignment: Specifications
Alignment
Wheel Alignment
Tire size:
VAN, LX, EX, EX-L models: P235/65R16 103T
EX-L Touring model: P235-710R460A 104T
Tire pressure:
Front (VAN, LX, EX, EX-L Touring models) ........................................................................................................... 230 kPa (2.3 kgf/cm2, 33 psi)
Front (EX-L model) .................................................................................................................................................. 240 kPa (2.4 kgf/cm2, 35 psi)
Rear ........................................................................................................................................................................... 240 kPa (2.4 kgf/cm2, 35 psi)
Caster angle ................................................................................................................................................................................................... 2° 32' ± 1°
Camber angle:
Front ........................................................................................................................................................................................................ 0° 00' ± 30'
(Maximum difference between the front right and left side: 0° 30')
Rear ............................................................................................................................................................................................................. -0° 30' ± 45'
The camber angle can be adjusted up to ±25' (center of tolerance) by replacing one damper pinch bolt with the adjusting bolt. The camber angle can
be adjusted up to 50' by replacing both damper pinch bolts with the adjusting bolts.
Front toe-in ............................................................................................................................................................................. 0 ± 2 mm (0 ± 1/16 inch)
Rear toe-in ......................................................................................................................................................................... 2 ± 2 mm (1/16 ± 1/16 inch)
Turning angle

Inward wheel 41° 56' ±2°
Outward wheel 34° 32' (Reference)

Toe - 0° +/- 2mm