Four Wheeler Magazine covers 4x4 Trucks, SUVs, & Off Road Vehicles
Subscribe Four Wheeler Magazine today for only $10.00! Link to Four Wheeler Magazine Facebook Fan Page Sign up today at Four Wheeler for your personal car space
 | 
|  
 
P139756 Image Large
How Transfer Cases Work
Here’s the inside of a BorgWarner 13-45 chain-driven case, the kind found on ’80s F-series pickups and second-generation Broncos. It has a 2.74:1 low-range ratio, achieved via a planetary gearset (the diamond-shaped gear near the clutch fork) that rotates inside an annulus gear (next to the planetary). View Related Article
P139750 Image Large P139751 Image Large P139752 Image Large P139753 Image Large P139754 Image Large P139755 Image Large P139756 Image Large
P139757 Image Large
Get Adobe Flash player
Four Wheeler