Does a 4WD suburban come with a posi rearend by default or was it an option?

2001 CHEVROLET SUBURBAN
104,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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PACEVETTE
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  • 3 POSTS
Thanks, Mike.
Oct 31, 2022 at 7:41 AM
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STRAILER
  • ✓Experienced Mechanic
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This was an option, some came with a traditional split power rear end. You can tell if your is a positraction if you pull the rear cover and if it has a small spinner like this differential was you have a positraction unit.

https://youtu.be/ytqXLSjHNm0?t=309

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