1999 Pontiac Trans Am SLP Dyno Testing - Trans Slam
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Even though the SLP springs are engineered for easy installation, we wanted to be sure the installed spring height (1.80-inch) was right. The new titanium retainer and keepers are inside the measuring tool. Fortunately for us, the spring height checked dead-on, and we didn't need to use any shims (we had them ready if we did). View Related Article
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