Here's what's involved:
* Finding a suitable differential: You'll need to source a used limited-slip differential from a compatible 1996 (or very close year) Chevy 1500, or possibly another GM truck that uses the same axle. The gear ratio should ideally match your current ratio for optimal performance and to avoid speedometer inaccuracies. This is crucial, as differentials aren't interchangeable across all models and years.
* Professional installation is highly recommended: Replacing a differential is a complex job requiring specialized tools and expertise. It involves removing the old differential, installing the new one, setting up the pinion depth and backlash correctly, and re-installing the driveshafts and axles. Improper installation can lead to premature wear, damage to the drivetrain, and even dangerous failure. A professional mechanic familiar with GM trucks is the best option.
* Cost: Expect to pay for the used differential, the labor for installation, and potentially additional parts like gaskets and seals. The total cost can range from several hundred to over a thousand dollars depending on location, labor rates, and the condition of the replacement differential.
* Alternatives: Consider exploring aftermarket limited-slip differentials, but those usually involve a significant cost increase and may still require professional installation.
In short, it's *possible* to add Posi-traction to your 1996 Chevy 1500, but it's a significant undertaking that requires mechanical knowledge or professional help, and considerable expense. Getting quotes from several mechanics specializing in differential work is highly advised before proceeding.
