B310 has a live rear axle (as does B110 and B210), so if the rear toe-out is incorrect, there is no provision for adjustment. It should be 0 degres. If not a good alignment shop may be able to bend the housing to correct a minor imperfection. If it is out very much, the rear axle or housing is damaged.

VB310 (squareback wagon) used leaf springs.
WB310 (slopeback wagon) used coil springs.
No B310 used IRS, so it is unlikely there is a rear alignment problem unless it has been in a wreck.


Not sure about B310 castor, but B110 castor is minimal, and so the Datsun 1200 wanders more than most cars (which is normal for B110). Increasing the castor helps it track straight ahead much better than the stock specifications.