Will a 1992 ford aerostar with a 40 engine with a automatic transmission will the transmission fit a 1993 ford aerostar 30 engine?
Its my understanding that the 92 and 93 Tranny is the same for the two years. It might make a difference if one is a electronic 4-wheel drive and the other is not.
Is it easiest to replace the engine on a 1992 Acura Vigor 2.5 automatic with or without removing the transmission at the same time?
You are better taking off the engine with the transmission together, I have a 93' Vigor and changed the transmission and it pretty hard, there many bolts that are hard to get; if you need to changed your engine, it will be much easier taking the transmission off while the engine is off the vehicle..
Since you didn't tell us the Engine here are all three, Which Just happen to have the same Transmission. 1992 FORD THUNDERBIRD 3.8L 6-cyl Engine Code 4 1992 FORD THUNDERBIRD 3.8L 6-cyl Engine Code R 1992 FORD THUNDERBIRD 5.0L 8-cyl Engine Code T HO CAPACITIES Automatic Transmission, Initial Fill..........3.0 quarts Automatic Transmission, Total Fill..........12.0 quarts  With ENG at operating temperature, shift through all gears. Check fluid level in PARK and add fluid as needed.
Only the 5-speeds. You can't swap automatics without running into problems, and you can't swap an automatic for a 5-speed without modifying (and it will still throw an engine code afterward). A 1992 Corsica had a 3T40 automatic, and the 1995 Beretta had a 4T60E automatic. Your best bet is to swap in another 4T60E. It came in a lot of GM vehicles. Go to car-part.com and enter "1995 Chevy Beretta automatic transmission" in the…