I recently found a 61 GMC Suburban with factory 4wd. Can some of you 4wd guys get me up to speed on this rig. It has a 305 V6. What transfer case would this truck have? What front and rear axles and front hubs and what gear ratio is stock. This is a 1/2 ton. Are there any later model axle assemblies that would bolt in and give me a higher gear and 6 lug? My goal is to keep it mostly stock but I will make changes to make it more driver friendly. I appreciate all input.