I'm buying a new F150 soon. With the 5 Sp auto, what rpm will I have at 80 MPH with 4.10 gears on the stock tires. I've been converted to Fords because my wife's family gets the A-Plan, but I still drive my camaro and would die before I bought a Mustang. No offense.

 

5 speed auto? In an F150? I don't think so.

 

Damn, I thought the 4 sp with OD was actually a 5 sp. That sucks. Anyone have the answer for 4th gear.
Also, what are the gear ratios for 1 - 4?

 

From the tranny info page I typed up (it is on this site, but not a sticky here and im to lazy to search for it).

http://fullsizebronco.com/forum/showthread.php?t=49569

...Depending on what engine you get, it determines what tranny it is. Both have the same ratio however

Model: 4R70w
Type: Four speed + reverse and 70(x10)lbs of torque
Years: 94-96 Bronco, F150
..........97-03 Expedition, F150
..........04-06 F150
Engines: 300, 302, 4.2L, 4.6L, 5.4L
Display: PRN(D)21 w/ overdrive lockout switch
Fluid: Mercon V
Ratios:
1st 2.84:1
2nd 1.55:1
3rd 1.00:1
4th 0.70:1
Reverse 2.32:1
Trans code: U

Model: 4R75E
Type: Four speed + reverse and 75(x10)lbs of torque
Years: 04-06 F150
Engines: 5.4L
Display: PRN(D)21 w/ overdrive lockout switch
Fluid: ?
Ratios:
1st 2.84:1
2nd 1.55:1
3rd 1.00:1
4th 0.70:1
Reverse 2.32:1
Trans code: B

 

Thanks, thats exactly what i was looking for.