hi welcome to monster transmissions you're with Curt here in Curt's corner
today I'm going to go over the differences of a ADOE 4R70W and
a 4R75 now again like all transmissions the evolution of the unit
there's changes between the casting of the case all the way down to internal
components that will change through the years to improve the performance and
longevity of the transmission and then it's no different with these three
models they're all ford four-speed automatic s-- electronically controlled
units and they go from 1993 all the way up to 2007 so it's a very versatile unit
most of drivetrain components are interchangeable but the electronics or
not so they are very specific to your range of your vehicle so it's very
important to let us know the accurate year of the vehicle that you have to
ensure that we get you the right product for your application so the first one we
will work with this is an AO de Maio d was the original four-speed automatic
but it was controlled with a throttle cable then in 1993 they went to
electronic and it's a harness that plugs in right here on the case and you notice
this harness here is white in color and it has nine pins that was the first
generation of electronics 93 to 95 and then they evolved and have changed the
transmission name from a OD to a 4r 70w now that's a four-speed automatic still
and you notice the case connector changed
well the pin outs for the connector changed as well as the internal harness
this had a soft like a cable harness and this is a solid rigid harness it's
called a solo harness for 2 470 W and you notice the later years it's the same
now they did not change the color of the connector nor the penthouse
so in fact they're interchangeable so the case connector color and the
pendants are the same all we up to 2005 so those are differences
between the transmissions when you look at just the drivers or the passenger
side of the unit where the case connector comes out of the case now the
cable that plugs into this may be a different color you have to remove the
harness to expose the connector to see the color of the harness that will help
us determine which unit you have now we're going to rotate the transmissions
around so you look at the speed sensors and then what differences there as well
on the aode they have the speed sensor right here on the case for a 70 same
thing seems type of speed sensor it's a single speed sensor if it's four-wheel
drive you may have a speed sensor on the transfer case as well then when they
went to 2003 they changed the case and the electronics again being us oh wow
there's two speed sensors there's an input and an output speed sensor on the
case so again the electronics change the
harness their vehicle changed so our differences in the units as well as more
internal changes of the transmission to improve the durability and longevity of
these transmissions so those are the basic differences visually looking
outside the unit on how you could tell what transmission you have and another
hint if you look at the very top of the case here in this area here you'll
actually have the casting year of the transmission that's another indication
after the transmissions out of the vehicle to see what year transmission
you have but if you have any further questions please feel free to call us
here at monster transmission talk to any of our mini expert techs you can call us
at 877 looking forward to seeing you then