1942 - 1947 Chevrolet Shop Manual



	4-37

	frame into the body. Moreover, with this mounting, there is no metal-to-metal contact. Adjustment of the passenger car rear spring seats should always be made with the weight of the car on its wheels. The eye bolt nut should then be loosened and the car jolted up and down several times to set the rubber bushings in their normal position. The eye bolt nut should then be drawn down tight and a cotter pin installed. FITTING 1/2-TON TRUCK REAR SPRING SEATS If it becomes necessary to adjust the rear spring seats on the truck models the correct clearance between the spring seat and the rear axle housing may be obtained as follows: 1. Jack up the rear end of the truck and block it in this position by using car horses under the frame side rails. 2. Disconnect the spring shackle and drop the rear end of the spring. 3. Remove the spring U-bolts. 4. Remove the two screws from the lower spring seat cap and remove both halves of the spring seat. 5. Clamp the two halves of the spring seat in a bench vise and file evenly from face of each half. Assemble the spring seat to the axle housing and check the fit of the seat on the housing. Continue to file evenly from both halves until such a fit is obtained that a slight drag is felt when turning the spring seat on the axle housing.	3. Set the adjustment screw of the lubricating clamp, Fig. 70, until the width of the clamp is a little more than the spring thickness.

		Fig 70—Spring Lubricating Clamp 4. Push the threaded end of the plunger into the drilled hole, forcing the canvas against the plate. 5. Screw the plunger several times to the right to thread the end through the canvas, Fig. 71. 6. Screw the sleeve against the bottom of the spring cover. Never use pliers.

	SPRING LUBRICATION When lubricating springs having metal covers, use a soft, smooth cup grease to which 8% to 10% graphite has been added. This compound should be applied in such a way that it is forced between the leaves of the springs and not between the canvas liners and the springs covers. This can be done with the use of a spring lubricating clamp J-595, as follows: 1. Jack up the frame to remove the load and allow the spring leaves to separate, 2. If the spring cover has no hole, drill a 3/16" hole in the center of the bottom, one-third of the way from the spring eye.
		Fig. 71 — Position of Plunger for Lubricating Spring 7. Attach the grease gun hose to the fitting and apply pressure slowly. 8. Separate the main and second spring leaves with a screwdriver so the lubricant can go between. 9. Remove the screwdriver and attach a "C" clamp at the end of the spring cover. Continuing to apply pressure will force the lubricant • toward the opposite end.