* Different generations: The 86 and 94 Toyota trucks are from different generations, and the transmissions likely have significant differences in their design, mounting points, and compatibility with the drivetrain.
* Changes over time: Toyota made changes to their transmissions over the years, and the 94 transmission could have different bolt patterns, input shaft lengths, or even internal components that don't match up with the 86 truck's engine and drivetrain.
What to do instead:
1. Identify the specific transmission: Determine the exact model of the 86 truck's transmission.
2. Research compatible transmissions: Use online resources and forums to find compatible transmissions for your 86 model year.
3. Consult a mechanic: A qualified mechanic can help you determine the best options for your truck and provide guidance on the installation process.
Important Note: Even if a transmission from a later model year appears to be compatible, it's essential to consult with a mechanic to ensure proper fit and functionality before proceeding with an installation.