I got the aod installed done about 2 weeks ago/ I can't belive how well it runs with a 3.10 rear gear /at 70 mph I run 1700 rpm I was sure that I would have to go to a 3.50 and run around 2200 rpm/go's up most hills great with no kick down/ Im getting 18mpg instead of 13mpg at 70 on interstate type driving, but I got $2700 in it and thats with me doing all the work also also includes a new 9 inch rear end/at $3.50 a gal gas it will paid back in about 34k I only drive it around 5K a year but its nice not listening to the y block run 3000 rpm with the old fom/if anyone out there is think about doing this swap I now have most of the answer were before all I had was question / I do question if it was worth that much money