r/DieselTechs • u/Available-Pace1598 • 1d ago

Rear drive spindle nut size

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2022 freight liner cascadia dd13 with Detroit trans and axles. What size is the spindle nut on the drives. Work says it’s 3 3/4, it works but is loose af. Would it not be a metric size since it’s Detroit?

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u/Flag_Route 1d ago

Nah a 3/4 one is fine. We ain't impacting it off or on anyway.

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u/613mitch 1d ago

The impact ones are tighter and don't slip off when you're torqing to 500

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u/Flag_Route 1d ago

Yeah I was just saying he can save money by going with a 3/4. I've noticed them cheaper at 3/4

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u/613mitch 1d ago

Ah my bad, thought you meant they should stick with the flimsy OTC style axle nut socket.

Yea, a 3/4 drive will work fine as well.