* 1982-1992 (Generally): You'll find the most interchangeability within this range. Many mechanical parts, like engine components (if you have the same engine), suspension parts, brakes, and some interior pieces will often swap.
* 1990-1992 (Most Interchangeable): These years are the closest and will have the highest degree of interchangeability, especially for body parts and trim pieces.
* 1982-1989 (More Limited): While many parts *might* still fit, there will be more variations and potential incompatibility. You'll need to double-check part numbers or compare parts visually before purchasing used parts from these years. Specific differences might exist in the wiring harnesses, mounting points, or subtle body panel dimensions.
Parts that might have the *least* interchangeability between 1991 and other years (within the 3rd gen):
* Wiring harnesses: These can be notoriously specific, especially if you are looking at modifications involving electronics.
* Body panels: Minor differences in body lines or trim pieces can exist, particularly if comparing to earlier years (1982-1987)
* Interior parts: While many interior parts are similar, some trim pieces or specific options might not be fully compatible.
* Specific Engine & Transmission Parts: While the general engine family might be the same, there can be variations in specific components depending on engine options (e.g., different carburetors, fuel injection systems, or specific engine codes).
Before you buy any used parts:
* Always verify the part number: Use online parts catalogs like RockAuto, AutoZone, or others to look up the correct part number for your 1991 Camaro RS and compare it to the part number of the used part you're considering.
* Check for differences in the part visually: If possible, inspect the used part to ensure it visually matches your existing part.
In summary, while many parts are interchangeable across the 1982-1992 3rd-gen Camaro range, it's crucial to verify compatibility to avoid wasted time and money. Parts from 1990-1992 will likely fit the best. Using online parts catalogs and comparing part numbers is the best way to ensure a correct fit.
