Had my 1998 F150 tyranny pop a snap ring that was on backwards come off going over railroad tracks at 19k miles, got a rebuilt from Ford in 3 days . One pan bolt was rust I was like WTF . No issues since at 116k miles .
Would a $12K deposit help to hold and get your truck without any tricks pulled on you ? And of course have a singed contract with a OTD total price with signatures.