Anyone know what the torque spec on rear pinion nut on a 2008 2500 cummins ?

 

I do not know the torque specs. However before taking mine apart. I center punched the nut and the pinion shaft. Then on reassembly I turned the nut just a hair past the marks. Got 200,000 on the new seal with no issues at all. I do lots of heavy hauling too. Hope this helps.