The 1980-96 Ford Broncos and Ford F-series offered three main transfer cases. All three transfer cases are chain drive, that require ATF for lubrication as opposed to standard gear lube.

The New Process 208 transfer case was available from 1980 to roughly 1985. This is an aluminum case light duty chain drive. It feature a manual shift with the gear positions of 2 high, 4 high, neutral, 4 low. Low gear ratio is 2.61:1. Left side front output fixed yoke. Pickup have a rear output slip yoke while the Bronco has a rear fixed yoke,

The Borg Warner 1345 transfer case was available from 1980 to roughly 1989. This is an aluminum case medium-duty chain drive. It feature a manual shift with the gear positions of 2 high, 4 high, neutral, 4 low. Low gear ratio is 2.72:1. Left side front output fixed yoke. Pickup have a rear output slip yoke while the Bronco has a rear fixed yoke,

The Borg Warner 1356 transfer case was available from roughly 1985 to 1996. This is a magnesium case medium duty chain drive. It feature a manual or electric shift with the gear positions of 2 high, 4 high, 4 low. Low gear ratio is 2.62:1. Left side front output fixed yoke. Pickup have a rear output slip yoke while the Bronco has a rear fixed yoke,