Difference between 3.92 anti-spin and max tow

[0051 MAR]

So I am changing the diff oil on my 1500 and I know I have the 3.92 with the amti-spin option. I don't know if I have the max tow package or not and I can't find anything outlining the difference but they do call for different oils. Can anyone help me here? "Max tow" package isn't on my window sticker but I do have a hitch and brake controller. Thanks in advance!

 

[KMach]

The 256 RBI “ Max Tow” is only available in an open diff. So if your sure you have anti spin you have the regular C235 with 3.92s. That requires mopar synthetic 75w-140 and 3oz bottle of mopar anti slip additive.

 

[0051 MAR]

The 256 RBI “ Max Tow” is only available in an open diff. So if your sure you have anti spin you have the regular C235 with 3.92s. That requires mopar synthetic 75w-140 and 3oz bottle of mopar anti slip additive.

Awesome, thank you for the information. Yes, my window sticker specifically lists the "anti-spin" rear differential and the 3.92 gear ratio. Sounds like I guessed correctly.