Thrust Angle: Adjustment

Make the thrust angle adjustments by turning toe-in adjusting bolts of rear suspension equally in the same direction.
When one rear wheel is adjusted in a toe-in direction, adjust the other rear wheel equally in toe-out direction, in order to make thrust angle adjustment.
When the right and left adjusting bolts are turned incrementally by one graduation in the same direction, the thrust angle will change approx. 16' ["L" is almost equal to 12 mm (0.472 in)].
1. Thrust angle: 0°+/-30'
Fig 1: Identifying Center Line Of Loci
Courtesy of SUBARU OF AMERICA, INC.

NOTE: Thrust angle refers to a mean value of right and left rear wheel toe angles in relation to the vehicle body center line. Vehicle is driven straight in the thrust angle direction while swinging in the oblique direction depending on the degree of the mean thrust angle.

Fig 2: Identifying Thrust Angle

Courtesy of SUBARU OF AMERICA, INC.

Thrust angle: r = (alpha - beta)/2

a: Right rear wheel toe-in angle
B: Left rear wheel toe-in angle

Here, use only positive toe-in values from each wheel to substitute for alpha and beta in the equation.

Fig 3: Identifying Thrust Angle: R = (Alpha - Beta)/2

Courtesy of SUBARU OF AMERICA, INC.