863 Bushing Kit
Fits 89-05 Miata control arms
The Supermiata SAE 863 bronze bushing kit replaces all control arm bushings.
Why SAE 863? You might be familiar with traditional urethane bushings which rotate on a steel pin. The addition of the 863 bushing in between the urethane bushing and steel pin greatly reduces friction over a urethane on steel kit. So much so that the difference can be felt immediately. Expect to increase damping adjustment on your shocks to compensate for the large decrease in friction. A sintered bushing kit is the next best thing to a pure spherical bearing kit, but costs less and will longer due to the superior weather sealing.
What is SAE 863? SAE 863 describes the iron-bronze alloy material, also known as “Super Oilite” or iron-copper. It is a sintered (powdered) metal that is cast into the shape of the bearing. The material is impregnated with SAE90W lubricant during casting.
“I already have a urethane bushing kit” Our upgrade kit is specifically sized to be compatible with Energy Suspension polyurethane components. Not compatible with other brands of urethane bushings. We’ll send you everything you need to convert your existing Energy Suspension urethane bushing kit to SAE863 bronze. Click here to order.
Complete Kit includes everything needed for front and rear:
- BLACK 95A durometer urethane bushings, graphite impregnated
- Bronze SAE 863 bushings
- 4130 CrMo steel pins & thrust washers, Ra 32 finish
- 2 oz Lube
- 3 year warranty
Durability The only part that really wears in the kit is the 863 bronze inserts. They will last many years with just a small application of oil between the 863 and steel sleeves every 2-4 years.
Instructions: Download here
Learn more about 863 suspension bushings in this video
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