What is the torque spec for rear axle nuts on Peterbilt 379?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by maxwellhouse, Dec 15, 2025 at 2:32 PM.

Dec 15, 2025 at 2:32 PM #1

maxwellhouse Bobtail Member

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Just to clarify, I mean the large inner/outer nuts that hold the hub onto the differential. Does anyone know the torque specs on these?

maxwellhouse, Dec 15, 2025 at 2:32 PM

maxwellhouse, Dec 15, 2025 at 2:32 PM

#1
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Dec 15, 2025 at 2:35 PM #2

Big Road Skateboard Road Train Member

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It depends. Does it have a spacer/sleeve between the bearings? I assume not if it has two nuts

It's best for someone that hasn't done it before to follow manufacturer specs. Stemco and Webb have some guidelines out there.

Big Road Skateboard, Dec 15, 2025 at 2:35 PM

Big Road Skateboard, Dec 15, 2025 at 2:35 PM

#2

BoxCarKidd Thanks this.
Dec 15, 2025 at 2:43 PM #3

maxwellhouse Bobtail Member

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Nope, no spacer between the bearing. I'll look into Stemco, thanks!n

maxwellhouse, Dec 15, 2025 at 2:43 PM

maxwellhouse, Dec 15, 2025 at 2:43 PM

#3