Torque spec for rear axle to diff?

Something Else

I have a BK2 with the bolt-on style of rear axles, where they bolt to the splined shaft which slots into the diff.

Anyone know what the torque spec is for the bolts holding the axle to the spline?

The service manual only shows the single piece axle and thus does not give a torque spec for these bolts. They are triple square and I assume have a quite high spec so didn’t want to just guess at it.

Posted Nov 14, 2023, 2:58 PM UTC

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JustAnotherDude1990Moderator•

I have both the BK1 and BK2 shop manuals posted in the master resource list, it should be in there?

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DerStroOP2014 3.8 Track Rat•

This axle style came with the BK2, but only (I believe) on the manual cars. Looking in the service manual it shows only the single piece axle that comes on the auto cars. It’s always possible I missed it, but I’ve been through the shop manuals half a dozen times looking for it and never found it.

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JustAnotherDude1990Moderator•

BK2 manual, page 650.

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DerStroOP2014 3.8 Track Rat•

I see where you’re referencing… my brain just assumed that was for a different fastener because I have a hard time believing that the bolts which connect the axle to the diff should be barely more than hand tight at 7ft/lbs.

I guess there’s not much of a clamping load here and the shear strength is the important part. It’s just surprising given how much trouble I’ve seen the YouTube folks have removing them.

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JustAnotherDude1990Moderator•

They either had seized in there over time and corroded, or had threadlock, or both.

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