Depends on what repairs are needed but full rebuild on A440 trans can be as high as $5K depending what shop does it and if they do the full Monty, including T'case (prolly will need it). Might actually be more, these days ....
A440f transmission from my 1989 FJ62. 245k and has been run with an auxiliary cooler since I’ve owned the truck (~3.5 years). Transmission is working perfectly and is coming out for an H55f 5 speed swap. Should be out in the next few weeks. Located near Warrenton, VA. Pick up only at this...
Probably worth it in the long run but a few months back I was quoted a fully rebuilt A440F from wholesale automatics with all the HD bells and whistles
it was pushing the 8K mark. Out of my price range right now for sure, but If I had the cash I'd be on it.
A few A440f data points to help you decide based on my experience:
rebuild 1: $2500 in 2013 dollars for full rebuild from a 'low cost' rebuilder. The rebuild had issues from the get go, but got bad enough (slipping, overheating) to need another rebuild after 50k miles
rebuild 2: $4500 in 2020 dollars for full rebuild from a 'do it right' rebuilder. This included a few extras: all 3 motor mounts, piping tc and trans breathers to fire wall.