• Oversized retaining plates lock camshafts together at top dead center (TDC) on GM 2.8L 3.0L and 3.6L DOHC engines
• Three-plate set is used to tighten both sets of cams to prevent them from turning while setting timing
• Extra-large size prevents valve covers from being installed with the plates in place, protecting the engine
• Similar to EN-48383
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