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								Wow. Learning something new. Kind of like some of the new cars I'm seeing with 0w-16 oil being used. 
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								Well as much as I love my old 99 I’m getting excited about my new 2022 3500 srw ho 6 speed I hope I get it soon 
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								The 12.0 is only offered on the HO, so they are excluding the 11.5 DRW axle. Regardless of wheel configuration SO gets 11.5 and HO gets 12.0. It’s a poorly written section thou. 
 
     
     
	 
	 
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Can I use Mobile Delvac 1 synthetic 5/40 motor oil in it after break in and for its first oil change Also what about Amsoil 75/140 severe gear grease in the AAM 9.25 front axle and the AAM 11.5 rear axle I haul heavy 3000 lbs slide in truck camper ??