i had a 1986 murcury wagon that was running real good until yesterday and then it started leaking something around the drive shaft the my to speed was 45 on the free way and i exited off and it got down to 25 it was smoking really bad and then i thought i will grab something to eat but when i came back out to get in the car it would not turn over you could hear the starter trying to kick on and spinning but it was not turning the moter over what do you think happend i checked the fluids all the time so i know they was good in the car it was also making a weird grinding sound and shaking real bad so bad i thought i had a flat