RA-28 REAR AXLE AND SUSPENSION — Differential 2. CHECK RING GEAR RUNOUT If the runout is greater than maximum, replace a new ring gear. Maximum runout: 0.10 mm (0.004 in.) 3. CHECK RING GEAR BACKLASH If the backlash is not within specification, adjust the side bearing preload or repair as necessary. Backlash: 0.13 – 0.18 mm (0.0051 – 0.0071 in.) 4. CHECK TOOTH CONTACT (See page RA-37) 5. MEASURE DRIVE PINION PRELOAD Using a torque wrench, measure the preload of the back- lash between the drive pinion and ring gear. Preload (at starting): 5 – 8 kg·cm (4.3 – 6.9 in.·lb, 0.5 – 0.8 N·m) 6. CHECK TOTAL PRELOAD Using a torque wrench, measure the total preload. Total preload: In addition to drive pinion preload 4 – 6 kg·cm (3.5 – 5.2 in.·lb, 0.4 – 0.6 N·m) If necessary, disassembly and inspect a differential.