hey guys whats up. im new to the forum but ive had my ford since i could drive and its amazed me more and more the more and drive it ha!

but thats not why im here. i have a couple of questions regarding the trans.
i have a 01 f150 5.4L 4x4 white supercab stepside.
my first question is what exact transmission do i have in this truck? i was told it was a d70? somethin to that sort. an ammco worker told me this the other day when i asked him a couple of questions.

2nd question is at what rpm does your trucks that are similar? im pretty sure its a 4spd with an overdrive. the problem im having is its not like shifting into overdrive. itll just stay in 4th. :/
is this a sign of a upcoming transmission problem?
and if so how much exactly is a new trans for my truck (ballpark)

final question is how long have your trucks lasted? i know that ive seen on here about the forum that has some guy doing 315k on the orignial motor and thats definitely a testamate. but i honestly use my truck. i 4 wheel it with my friends and definitely have some fun out in the dirt with it. so i cant exactly say its babied. but that does NOT whatsoever mean that i neglect it. i love my truck and keep it in the best condition i possibly can.

if any of you guys have any insight please help me out! it would be sooo greatly appreciated! :]

 

2nd question i messed up. meant to say at what rpm does your truck usually shift at.

 

4R70W is your trans.
1,2,3 & OD.
I don't remember the stock rpm it used to shift....sorry.

Phil

 

oh ok so theres no "5th" gear? like 4th is overdrive and its just a three speed? or how does that work

 

Pretty sure it just a 3 speed with overdrive witch makes it 4.

Phil

 

yeah its 4 speed. thats including OD

 

It's a four speed overdrive trans. That means there are four ratios in the transmission, the highest one is 0.70:1, which is an overdrive ratio. There is also a lockup torque converter, when it locks it feels just like another shift.

 

that would definitely explain it then ha. how long does that tranny usually last for? and what are the usual maintenance issues that go wrong?

 

They usually last a long time IF they get ALL of the trans fluid changed every 30k miles. Just hanging what's in the pan isn't enough.

 

alright thanks. if something does go wrong what would probably go wrong first? like what parts are designed to wear out in the trans?

 

The clutches and bands will wear out. They are designed to wear, similar to how brakes wear. If the fluid isn't changed it loses some of it's lubrication properties and everything wears faster.

 

oh alright. i bought this book called auto fundamentals. so i think ill look what your talking about up so i can see a clear picture and understand the mechanics behind it all. how much do these parts usually run for?

 

There is also a good section on automatic transmissions at http://auto.howstuffworks.com/.

 

saweet :] thanks guys i really appreciate all the help. im gonna definitely keep you updated on my truck and how i mod everything out. and who knows maybe ill see you guys on the trails or at the dunes one day!