View Full Version : Aod to 4r70
Want to changeout my ford aod to a 4r70. Anybody know what parts or any changes that I would have to do? Heard the 4r70 is about a inch longer, would that be my only concern?
kgkeys
01-31-2024, 07:59 PM
The 4R70 is also electronic, so you need a shift controller.
Kyle
Yes, a stand alone kit, since I have a blueprint 347 with a fitech.
RogerDM
02-01-2024, 12:23 AM
Hope you can document your changeout and share here.
kgkeys
02-01-2024, 04:27 PM
Oh, and JimS noted that the slip yoke for the 4R70W has a larger outer diameter:
https://thefactoryfiveforum.com/showthread.php?45267-4R70W-Install&p=523486&viewfull=1#post523486
Looks like I need to pull my engine and transmission. Anybody drop the trans from underneath. Don’t look possible to me.
DonImbimbo
02-14-2024, 02:23 PM
The 4R70W driveshaft yoke is unique to the 4r70. I used Dane / Spicer 2-3-14061X, 1330 joint.
The trans controller I used came from Blueprint and it's a UShift controller (Blueprint 347 with 4R70W, and Sniper).
And I chose to eliminate the speedo sensor on the tailshaft, added a block off plate. I plan to get my speedo signal from the UShift controller, it monitors the output shaft speed sensor.
Don
Crawleyscobra
03-02-2024, 10:48 AM
Looks like I need to pull my engine and transmission. Anybody drop the trans from underneath. Don’t look possible to me.
I don't know about an AOD, but I just dropped my TKO-600 from the bottom on a MK III Roadster.
I'm swapping out my TKO to install a 4R70W from the bottom.
I currently have an empty case that I am using for a mockup install.
Factory five said I would need to remove trans from inside of cab. Trans shop got it out, and is currently rebuilding my aod(which was stock) to handle my 347. But now I have another problem. Just got a 05 van with a 6.0 w/4speed auto(for free with only 80,000 miles). I really want to switch over to the 6.0 in a few years time.
Update: trans is rebuilt with some c6 and 4r70 parts. Cost me 4900.