Vehicle reached a speed of 75mph started feeling a vibration, started to slow down and the drive shaft came loose from the transmission, damaged fuel line and e-brake cable. vehicle was modified in 2011 as a stretch limousine, a mobile machine stated that four of the six bolts were missing and the last two broke and caused the drive shaft to come off, vehicle was purchased in minnesota and the conversion was done in illinois. i have only had the vehicle a little over 30 days. i feel that there was an over look from the builder to the last owner and i don't know how to handle this situation. please advise