Simply stating the year isn't enough. There were variations in transmissions even within the same model year, due to engine size, options, and other factors. You'll need the code to be sure.
To find the correct replacement, you should:
1. Identify your existing transmission's code: Look for a stamped code on the transmission case itself. It's often located on the side or top.
2. Use a parts website or a parts catalog: Enter your S10's year, make, model, and the transmission code to find compatible replacements.
3. Consult a mechanic: A qualified mechanic can positively identify your transmission and recommend the best compatible replacement. They can also ensure proper installation.
Using only the year range to select a transmission is risky, as internal components and mounting points can vary subtly, leading to installation problems or premature failure.