So I am considering buy a truck off a family memeber. Its a 98 f150 ext cab 4x4 with the 5.4 and the e4od tranny. The transmssion has been replaced once in it. Currently the truck will move perfectly in reverse and when you put it in drive you have to give it throttle till about 3k rpms and wants it gets moving it doesnt slip as long as the rpms are up to like 2500 to 3000. Could this be a torque converter problem? Any help would be gret guys.

 

Sounds like a bad slip i think the internals are shot, you sure its a E40d

 

Not sure but you have a 4R70w which is a later version of the e4od

 

Well the tag in the door jamb says code E for transmission which on here says its the e4od so which one is it lol?

 

yeah my tag says e40d too but its a 4r100 which is a 250 and diesel trans and my rear end is a 10.25 sterling, my truck is regitered as a 150

 

So how in the hell do I tell and your truck sounds a awful lot like this one my buddy said he thought that it looked like a sterling rearend cause its a huge rear axle.

 

Sterling produced the 10.25 and 10.50 for ford in the 97-03 refered to by sterling because they were built in sterling, michigan i beleive. Im gonna go with you probly have the E40D which sucks or the 4R70 which is a little better or the 4r100.

 

if it is the 4r100 its about 1500-1700 to rebuild, but if you get it reuild mark the trans somehoiw because those trans are saught after, the shop that did mine put another person e40d in my truck and i had to fight with them and force myself into the shop to show them that it was not mine, manager knew it the whole time

 

LOL well this truck was a state owned truck so Im sure its got all the heavy equipment options....How can I tell the difference between wether its a e4od 4r100 or the other one u mentioned which i doubt its it since it said it was code e.

 

4r70? thats in the 04-08. Might be