Got an 87 f250 6.9l idi, 4x4. 5spd. Going to fix it up for my son.its been a farm truck and not driven great distances. Got it home (120 highway miles) and and noticed the front diff was leaking oil pretty fast. Now its been sitting a few weeks im sure it doesn't have any fluids left in the front diff. Its above my knowledge on how to fix it. My question is if i drive it to a shop will it tear anything up? If it was the rear diff (staight axle) i could change the gasket myself, bit the ford hybrid front is weird to my non mechanical self