I have 3.50 gears. Before I changed to an AOD I had a C-4. At 3000 rpm I was doing just over 60 mph with 225/60R15's. The rpm would drive you nuts and make you cringe if you pushed it any harder.
With the AOD it drops it about 800 rpm or so. I don't have a lock up convertor, just the O/D. Changed it to an Art Carr convertor. Really made a difference on acceleration.
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Dave
1968 Cougar
2004 Thunderbird
2007 F150 Harley-Davidson, SuperCrew
1986 LTD
1997 Ranger
1992 Honda Civic
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