Isuzu KB P190. Manual - part 132

4C1-24  FRONT WHEEL DRIVE 

Important Operations 

3. Lock Pin 
Break staking on the lock pin using a 5 mm (0.20 in.) diameter 
drill. 

 

 
 

4. Cross Pin 
Remove the cross pin using a soft metal rod and a hammer. 

 

 

FRONT WHEEL DRIVE  4C1-25 

  Inspection and Repair 

Make all necessary adjustments, repairs, and part replacements if wear, damage, or other problems are discovered 
during inspection. 

 

 

• Ring gear, pinion gear
• Bearing
• Side gear, pinion gear, cross pin
• Differential cage, carrier
• Thrust washer
• Oil seal

 

 

Visual Check 

Inspect the following parts for wear, damage, or other 
abnormal conditions. 

 

 

 

Ring Gear Replacement 

(1) The ring gear should always be replaced with the drive

pinion as a set. 

(2) 

When installing the ring gear, apply LOCTITE 271 or

equivalent to the threaded hole and bolt. 

(3) 

Tighten the fixing bolts in a diagonal sequence as 

illustrated. 

(4) Discard used bolts and install new ones. 

Bolt Torque 

N

⋅m (kgf⋅m/lb⋅ft)

 

108 

± 9.8 (11 ± 1/79.6 ± 7.2) 

 

 

 

 

Clearance Between the Differential Pinion 

and the Cross Pin 

mm(in)

 

Standard Limit 

0.05 - 0.10 (0.002 - 0.004) 

0.2 (0.008) 

 

 

 

Clearance Between the Side Gear and the 

Differential Box 

mm(in)

 

Standard Limit 

0.03 - 0.10 (0.001 - 0.004) 

0.15 (0.006) 

4C1-26  FRONT WHEEL DRIVE 

 

 

Play in Splines Between the Side Gear 
and the Axle Shaft 

mm(in)

 

Standard Limit 

0.07 - 0.36 (0.003 - 0.014) 

0.25 (0.010) 

 

FRONT WHEEL DRIVE  4C1-27 

  Reassembly 

Minor Components 

 

 

 

Reassembly Steps 

 1. 

Differential 

cage 

 2. 

Thrust 

washer 

 3. 

Side 

gear 

▲ 4. Pinion gear 
 

 

 

▲ 5. Cross pin 
▲ 6. Lock pin 
▲ 7. Ring gear 
▲ 8. Bolt 
 

 

 

 

Important Operations 

4. Pinion Gear 
Install the pinion gear by engaging it with the side gears while 
turning both pinion gears simultaneously in the same direction.