Driveshaft length & compatibility
Reply #6 –
I used the same drive shaft from the AOD to the 5 speed.
I have a spare driveshaft in the garage (using an aluminum one now), but would imagine the cost of shipping would be crazy high.
Thunderbird or Cougar would be your only options unless you find another one to shorten, like a Crown Vic.. And even then, you'd still need the correct yoke and for it.
If the shop lost it, let them figure it out and make it right. It shouldn't be your responsibility. They gave it away.