Parts that are *likely* interchangeable:
* Many engine parts: If the engine is the same (e.g., a 305 small-block in both trucks), most internal engine parts will swap.
* Suspension components: Many suspension parts are often interchangeable, but you should double-check specifics like spring lengths and shock mounting points.
* Interior parts: Many interior pieces might be compatible, but there could be minor differences.
* Some body parts: Certain body panels might interchange, but there's a higher chance of incompatibility here due to minor styling changes between model years.
Parts that are *less likely* to be interchangeable:
* Electrical components: Wiring harnesses and some electrical components might be different due to minor updates or changes in options.
* Specific trim pieces: These are often model-year specific.
* Computer modules (if applicable): These are rarely interchangeable between model years.
Before purchasing any parts:
* Check the part numbers: The most reliable method is to compare the part numbers of the part you need from your 1988 truck to the part number of the 1986 truck part you're considering.
* Consult a parts catalog: Use a reputable online parts catalog (like AutoZone, Advance Auto Parts, or RockAuto) to look up parts for both your 1988 and the 1986 truck. The catalog will indicate compatibility.
* Check online forums: Forums dedicated to Chevy trucks are a great resource for asking about specific parts and compatibility.
In short: While some parts will likely fit, it's crucial to verify compatibility before purchasing. Don't assume interchangeability without checking!
