Fuel Vapor Canister Difference

According to the Master Parts Catalog, a total of 8 different vapor canisters were used during the production run.

• '70-'71 used D1AZ-90653-A
• '72 used D1BZ-90653-B
• '73 used  D3AZ-90653-C
• '74-'75 used D4AZ-90653-B
• '76 before 11/10/75 used D7VY-90653-A
• '76 after 11/10/75 used D8OZ-90653-A
• '77 used D7VY-90653-A
• '77 302 V8 with high-altitude carb. used D7AZ-90653-C

The short metal canister was used between 70-71. tall canister '72-'75 , the plastic canister was used between 75-77.

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