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the road clearance under the engine. The axle is of the full floating type and the axle shafts can be removed
without dismantling the steering knuckles.
Once each year have your Willys-Overland Dealer remove the front axle universal joint and shaft assemblies to
thoroughly wash out the steering knuckle housings and check the shim adjustment of the universal joints. After
checking, the universal joint housings must be refilled with good quality lubricant as specified in the “Lubrication
Section”.
The lubricant is retained in the steering knuckle housings by felt oil seals mounted in twin retainers attached to
the inner face of the housing, Fig. 25, No. 13. These seals also prevent dirt and grit entering the housings. Inspect
the seals regularly and replace them promptly if damaged.
Keep the spring loaded air vent or breather, mounted in the differential housing cover, free of dirt at all times.
REAR AXLE.
The rear axle is the semi-floating type, Fig. 27. End float of the axle shafts is adjusted by shims placed between
the brake backing plate and the axle flange. See Fig. 27, No. 38.
To remove a shaft for reshimming or replacement, first remove the hub cap, the cotter pin and the shaft nut. Use a
wheel puller to remove the wheel hub. Remove the bolts holding the brake dust shield, the grease and bearing
retainer and the brake assembly. Also remove the shield and retainer. Pull out the shaft, using care not to lose the
bearing adjusting shims. Should the end of a broken shaft be inside the axle housing tube, the broken end can
usually be removed by making a loop in a piece of wire and working the loop over the end of the shaft using the
wire to pull it from the housing. When the shaft is replaced, adjust the bearing with the shims to allow proper end
play of the shaft. See “Rear Wheel Bearings”, Page 50.
BRAKES.
The foot or service brakes are hydraulically actuated in all four wheels. The brakes are of the two shoe, double
anchor type and have chrome-nickel alloy iron drums.
The hand brake is mechanically operated through a cable and conduit to an internal expanding type brake
mounted on the propeller shaft at the rear of the transfer case.
FOOT BRAKES.
In operation, pressure is applied to the hydraulic liquid in the master cylinder through the foot pedal, forcing the
liquid through the lines and into the wheel cylinders. The pressure forces the piston in each wheel outward,
expanding the brake shoes against the drums. As the pedal is further depressed, higher pressure is built up within
the hydraulic system, causing the brake shoes to exert greater force against the brake drums. As the brake pedal is
released the brake shoe return springs pull the shoes together forcing the fluid out of the cylinders and back into
the lines toward the master cylinder.
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