1942 - 1947 Chevrolet Shop Manual



	*3-5*

	Reassembly When installing a lower control arm shaft, make sure that the bracket which has the letter "F" forged in it is installed toward the front of the car as shown in Fig. 10. If this is not done the bolt holes will not line up properly. 1. Install a new Neoprene seal on each end of the shaft which has a recess at the shoulders conforming to the shape of the seal, Fig. 10. Then install the lower control arm shaft assembly shaft in the lower control arm assembly by reversing the procedure outlined under paragraph 4 of ''Disassembly". Be sure the shaft bracket with the letter "F" on it is toward the front of the car.	UPPER CONTROL ARM PIVOT PIN Disassembly 1. Raise the car with a chain hoist, placing a stand jack under the spring seat, allowing jack to take weight of the car. Remove wheel and tire assembly. 2. Remove the rear threaded bushing, (the upper control arm and pivot pin assembly is shown in Fig. 11 and a cross section through the pivot pin is shown in Fig. 12) then remove


		FRONT SEAL PIVOT SEAL REAR BUSHING PIN BUSHING Fig. 12—Cross Section of Upper Control Arm Assembly the clamp bolt on the front upper control arm and remove the front bushing. 3. Loosen the clamp bolt at the upper end of the knuckle support and unscrew the upper pivot pin, using a 1/4" Allen set screw wrench. Reassembly 1. Using a stiff wire hook, place a new Neoprene seal over the end of each upper control arm in the position shown in Figure 13.
	Fig, 10—Layout of Lower Control Arm Parts 2. Install the lower control arm shaft bushings, being certain to centralize the shaft in the yoke formed by the lower control arms. 3. Install the lower control arm assembly to the car by replacing the lower control arm pivot pin in accordance with instructions given. Then complete the assembly in accordance with instructions given for replacing the front spring.


		Fig. 13—Centering Pivot Pin in Knuckle Support Assembly While holding the knuckle support between the yoke formed by the upper control arms, use an Allen set screw wrench to screw the pivot pin into the support making sure the hole for the Allen wrench is toward the front of car. Turn the pivot pin until the bolt section with the largest diameter is centered in the knuckle support, Fig. 13. Tighten clamp bolt at upper end of the knuckle support.
	Fig. 11—Upper Control Arm and Pivot Pin Assembly