How do you modify an ACDelco part 89018436 blower motor resistor to fit a 1996 GMC Safari?

The ACDelco part 89018436 blower motor resistor is not a direct fit for a 1996 GMC Safari. There's no modification that will make it work; it's simply the wrong part. The Safari's resistor has a different connector, mounting, and potentially different resistance values. Trying to force it would likely damage the resistor, the wiring harness, or both.

To fix the blower motor issue in your 1996 GMC Safari, you need to find the correct replacement blower motor resistor for that specific vehicle. You can do this by:

* Checking your owner's manual: This should list the correct part number.

* Using an online auto parts store's website: Enter your vehicle's year, make, and model. The website will show the correct blower motor resistor. Be sure to check images and descriptions to ensure it's the right one. Popular sites include AutoZone, Advance Auto Parts, and NAPA Auto Parts.

* Consulting a parts store: Visit a local auto parts store and provide them with your vehicle's information. They can look it up in their system and provide the correct part.

Important Note: Before ordering or buying a replacement, it's a good idea to visually inspect the *existing* blower motor resistor in your Safari. Sometimes the problem isn't the resistor itself, but a loose connection, blown fuse, or even a faulty blower motor. Fixing the underlying problem is much more cost-effective than replacing parts unnecessarily.