Just acquired an 07 FJ 6MT with 91,000 miles. Nice condition, well cared for with all services complete but just developed a rear axle seal leak on the driver's side Seems relatively minor at the moment, no fluid on the ground but some buildup on the inside of the rear wheel. Should I be concerned about the 100 mile highway ride to get it home? Planning to get the seal done straight away but need to get the truck home and registered.