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**Accelo** · 04-04-2023, 01:26 AM

Mine was a non-posi. I purchased a new aftermarket posi and installed it using the factory 3.73 gear set. It was tight enough that I could torque the wheel lug nuts with both wheels off the ground and the transmission in park. I have been thrilled with the new one.
BTW I have had a couple of truck that were factory posi. I believe they were a fairly common option.
Cheers.

04-04-2023, 01:26 AM	#3
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,194	Re: Posi rear differential factory option? Mine was a non-posi. I purchased a new aftermarket posi and installed it using the factory 3.73 gear set. It was tight enough that I could torque the wheel lug nuts with both wheels off the ground and the transmission in park. I have been thrilled with the new one. BTW I have had a couple of truck that were factory posi. I believe they were a fairly common option. Cheers.