Installing green bearing axles?

I bought a complete Moser 8 3/4 rear end houseing and axles for my 64 Barracuda. The axles have green bearings.

How much do I tighten the axle retaining bolts?

I tightened the bolts to the point that they hold the axle in but the lock washers are not compressed. The lock washers do not compress until I tighten the retaining bolts to the point that the axle retaining bracket bends and touches the axle housing. I am afraid of over tightenting the bolts and damaging the bearings.

Any advice?

Thanks