What would it take to make a six speed auto from the new Explorer work in older F150s like 04/05 or even the 97 thru 03 F150s. It sounds like its stout auto cause it'll be in the new Adrenaline with the 390hp/390torque engine. Better low end performance but also better gas milege being the main objective. Instead of running 3:73 or 4:10 rear gears you could run 3:55s or lower to match the first gear of the six speed. Your expert opinions!!
Auto transmisson gurus here!!
- Thread starter rezcobra
- Start date
The wiring harness and computer are different.I am a ford master tech, and I think it would be very involved as the systems have changed in the last several years. Even the test cables we use are different from 03 to 04.
Torque converter specs might be different (lockup or non-lockup, triple clutch or double, thickness of back-plating;for heat dissipation), and I'm sure Powertrain Controle Module (it should be part of the ECM). You might have to run new cooling lines because of changed locations (or just put a larger external cooler for better cooling). You might need a new rear tranny mount (where it mounts on the sub-frame) because of different tranny lengths??? The linkage should mate-up, but make sure it's perfect so it's never in-between engagements.
Thanks for the replys and input. Some food for thought! If you have a 2003 Lightning transmission with a 2.71 first gear ratio and a 4.10 rear end you would end up with an 11.11 final drive. Now take the new 6 speed which has a 4.17 first gear you would need a 2.66 rear end ratio to keep it at a final drive of 11.11 like the Lightning with a 4.10 axle gears. But the 6th gear would net a final ration of 1.83 as opposed to the Lightnings 4th OD at 2.91 with 4.10 gears. That is a hell of a good launch gears but also extremely good gas milege in 6th gear. I'm sure someone will make the 6 speed very reliable for performance use. But with the thousands of older vehicles there's the possibilities to upgrade with a 6 speed for better launch and better gas mileage.
would be interesting , but i would figure the transmission would cost More than the car you wish to install it in,,,,,,
I'm not sure if the Navigator tranny is different, but that might be a more suitable 6 speed, especially since the base block is a 5.4.
Even if the tranny is the same, you'd probably have a better converter and bellhousing assembly for the job. :thumbsup:
Even if the tranny is the same, you'd probably have a better converter and bellhousing assembly for the job. :thumbsup:
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