What transmissions other than the existing A4LD will physically fit the 3.0L engine in your 1989 aerostar?

hate to burst your bubble. but the A4LD is the only thing that will fit in your van..Ford only made a few other differant styles that year in Rear wheel drive. And all of those are too big.. Unless you are wanting to switch to a standard transmission for it.. But that's alot of work..

Macs Transmissions (Houston, TX)281-394-4951Macstransmissions@gmail.com