Suzuki WagonR+ RB310 Service Manual page 495

3E-20 REAR SUSPENSION
11) Loosen trailing arm rear mounting nuts (3) (right & left) from
axle housing, but don't remove bolts.
12) Remove shock absorber lower mounting bolts (1).
13) Lower floor jack until tension of suspension coil spring
becomes a little loose and remove trailing arm rear mounting
bolts (2) (right & left).
14) Lower rear axle housing gradually and remove coil springs.
15) Remove axle housing.