Best Answer

The top (or leading) pin bolt uses the plastic bushing, the bottom bolt should be solid. Here is a snipet from a manual.

  1. Install the caliper over the rotor and onto the caliper bracket. Ensure that the caliper pin boots are not pinched.

    NOTE: The leading caliper pin, or top pin, has a bushing as part of the assembly. The trailing caliper pin, or bottom pin, is a solid design.

  2. Install the new caliper pin bolts (1) and tighten them to 70 lb ft (95 N.m).

    NOTE: It is important to note which caliper pin is designed for the correct bore. The leading caliper pin, or top pin, has a bushing as part of the assembly. The trailing caliper pin, or bottom pin, is a solid design. Ensure that the bolt boots fit securely in the groove of the pin bolts. Be sure not to pinch or tear the boots. If the boots are damaged, they must be replaced.

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โˆ™ 2010-05-01 20:13:03
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Q: 2001 Buick lesabre front caliper mounting bolts which one goes top or bottom there is a difference in them?
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