1983 chevy k30 dually width

[81dually]

im curois what the outside of wheel to wheel on the rear of a 1983 chevy k30 dually is? and how to make sure its not a cab and chassis truck?

 

[fast 99]

Without measuring inspect the distance between brake backing plate and rear spring pack. If there is only an 1' or so cab and chassis, 6" will be a pickup. Reason, inner dual tire clearance for pickup bed wheelhouse.

 

[legopnuematic]

A cab and chassis will use a 14 bolt axle, a dually pickup uses a Dana 70HD rear axle.

The shape of the covers will give it away, along with the Dana will only have 10 cover bolts.