hi there, so my mustang has been leaking at the front crank shaft for a while now. i didnt think too much about it until it got more worse and right before a trip to arizona (i live in oregon) i thought ishould replace the crank shaft seal. so i did and 100 miles down the road it was leaking again.just great. so i told them i got a faulty seal they gave me a new one. same thing happened again. the shop then replaced the harmonic balancer and put another new seal on and thought it was fixed......nope! leaking at the same spot again. the shop is now asking me if i want to let them see whats wrong but they need to take the engine apart and im afraid it might get pricey real fast. the mechanic working on my car said it's probably some gears worn out and leaking the oil internally. should i let him see whats wrong or have my mustang friend do a clean swap out of a wrecked ebay mustang for $1000 total?