Shifterati

Glossary · Drivetrain

full-time 4WD

Also called full-time four-wheel drive

This page is a draft. It has not been approved yet, so read it with care.

Four-wheel drive that is always on, with a center differential so it can be driven on dry pavement.

The story

History: facts, each with its source

Wikipedia says some transfer cases are not selectable and are known as full-time, and that others can run full-time four-wheel drive with the center differential open. A transfer case with no center differential has no way to coordinate the speeds of the front and rear axles.1

Found on

Every generation on the site whose dossier names it

Sources

  1. Wikipedia (transfer case)