Download *Installing coil-over axle brackets to 8 inch housing leaf spring pads. Note: Most of the 8 inch housings are 2.275 inch diameter at the spring pad but there are some that are 2.75 inch diameter at the spring pad. *If you are using a 9 inch Ford housing lower bar measurement is 19.5 inch center-center. *If you are using the stock rear end housing the lower bar measurement is 20.25 inch center-center. Bolt the coil-over axle bracket to the leaf spring pad checking that the center bolt on the bracket aligns with hole in the pad. If you have a different diameter center pin, use the old pin from your old leaf spring. Note: If you are using a 9 inch Ford housing and welding on our coil-over axle brackets the bracket centers is 43 inches with the pinion down one degree from the back face of the axle brackets which are 90 degrees to horizontal. Clamp a flat bar on the back of both brackets to correctly square them to the housing. Even with the u-bolts tight the brackets need additional fastening to prevent them from moving with the side load that the coil- over’s put on them and from rocking for and aft with accelerating and braking so two holes will be drilled in the front and rear of the axle pad to correct this. If you have the bigger housing and access to install the nuts on the inside of the pad is an issue then the front and rear of the spring pad needs to be welded to the axle bracket to prevent the brackets from moving even though they’re u-bolted down. Drill a 3/8 inch hole through the spring pad using the hole in the axle bracket as a guide. Repeat the process for the other side. After both sides are drilled rotate both brackets 180 degrees and install the Allen bolts and tighten. With the axle bracket bolted down and using the axle bracket as a guide drill the remaining hole in the spring pad. Inset picture shows the pad with the two holes drilled. Rotate the brackets back to their correct location and install the Allen bolts and the u-bolts and finish tightening.
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