This video will help you understand a few of the necessary steps to converting a 2WD OBS truck to 4WD. #lonestar4wdconversion Lone Star 4WD Conversion forum write-up Take your time reading thru this, there are a lot of helpful tips for someone looking to do a conversion like this! If you have any questions please leave a comment and I’ll answer it asap! https://www.ford-trucks.com/forums/1685476-lone-star-4wd-conversion.html?ispreloading=1 Obs Ford F150 F250 F350 4wd 4x4 4by4 2wd 2x4 2by4 Conversion Old body style 7.3 Suspension Solid axle Straight axle Dana60 Dana 60 D60 Sterling 10.25 10 1/4 Differential Diff Pumpkin Gears Manual Transmission Transfer case