Available Transmissions??
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Junior User
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Available Transmissions??
I have a 84 Bronco II 4x4 with the V6, its lifted 10", rides on 38.5" tires and has 4.56 gears. I also have a 3 speed auto trans without overdrive. I yanked out all the factory computer stuff and run a carb.
What transmissions can I swap in that have overdrive and would this be a direct bolt in?
I would really like to lower the rpms at crusing speeds and still keep all the torque it has now, so I figured this would be the way to go.
Thanks
What transmissions can I swap in that have overdrive and would this be a direct bolt in?
I would really like to lower the rpms at crusing speeds and still keep all the torque it has now, so I figured this would be the way to go.
Thanks
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
I'm not the most knowledgeable about such swaps, but I will chime in with what I've seen.
About the only "bolt in" transmissions are going to be from other Ranger based vehicles. I would venture to say that the only OD transmission that leaves is the dreaded A4LD. If you get an '85 to '87 A4LD with a vacuum controlled 3-4 shift, then you'll get your overdrive, but you won't get lockup of the torque converter clutch. Later A4LD's had an electronic controlled 3-4 shift. However, with the electronic 3-4 shift, it wouldn't be hard to wire in the necessary and create a manually controlled 3-4 shift. 4R44E or 5R55E might also "bolt in", but would require even more extensive electrical work, as they are fully electroniccally controlled.
A better option might be a manual transmission with overdrive. Again, any from a Ranger based vehicle would be most likely to "bolt in"
Considering the size of your tires, you might want to consider some "non-bolt in" transmissions. Most any transmission could be made to work with enough ingenuity, money, and time.
About the only "bolt in" transmissions are going to be from other Ranger based vehicles. I would venture to say that the only OD transmission that leaves is the dreaded A4LD. If you get an '85 to '87 A4LD with a vacuum controlled 3-4 shift, then you'll get your overdrive, but you won't get lockup of the torque converter clutch. Later A4LD's had an electronic controlled 3-4 shift. However, with the electronic 3-4 shift, it wouldn't be hard to wire in the necessary and create a manually controlled 3-4 shift. 4R44E or 5R55E might also "bolt in", but would require even more extensive electrical work, as they are fully electroniccally controlled.
A better option might be a manual transmission with overdrive. Again, any from a Ranger based vehicle would be most likely to "bolt in"
Considering the size of your tires, you might want to consider some "non-bolt in" transmissions. Most any transmission could be made to work with enough ingenuity, money, and time.
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Thanks for the reply. I was actually considering swaping to a manual to avoid any electrical issues, but that first auto trans you suggested may work. I will have to do some more homework as to which would be the best fit for me, but its nice to know I actually have options.
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