AOD in 84 Tbird 3.8l January 04, 2017, 06:20:23 PM Hello all. Im curious what you all think about the effect the 3 speed has on engine longevity as compared to 4 speed. It seemed to me that the 1988 3.8 motors lasted much longer than the TBI 3.8l, and I always wondered if a big part of it was the overdrive transmission, which kept revs down.How difficult would it be to swap an AOD into this vehicle?Thanks.Russ Quote Selected
AOD in 84 Tbird 3.8l Reply #1 – January 05, 2017, 04:52:18 AM The later cars had an aod, so it wouldn't be hard. Quote Selected
AOD in 84 Tbird 3.8l Reply #2 – January 05, 2017, 01:33:41 PM Quote from: Haystack;458794The later cars had an aod, so it wouldn't be hard.Yeah, my '87 3.8 has an AOD.Can't remember what a swap would take offhand. Flexplate?Driveshaft?Kickdown rod?Given the age of our cars, I'd do the swap for comfort (lower rpm on the highway)only . Doubt the swap would every pay for itself for gas savings and doubt the longevity difference will ever matter. Quote Selected
AOD in 84 Tbird 3.8l Reply #3 – January 05, 2017, 05:34:52 PM The 84 shop manual says; the AOD was an option for the 3.8L in '84. Quote Selected
AOD in 84 Tbird 3.8l Reply #4 – January 05, 2017, 06:43:56 PM Thanks all. Is crossmember same for transmission? Quote Selected
AOD in 84 Tbird 3.8l Reply #5 – January 05, 2017, 07:09:33 PM What is the past way to identify what parts I would need for this job? IE kick down, trans mount, etc. Quote Selected
AOD in 84 Tbird 3.8l Reply #6 – January 05, 2017, 09:10:14 PM Google, part numbers, auto parts websites. Quote Selected
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