ok so i have a 96 f150 d44ttb front and d44 rear, it has 3.55s and its just not enough so i want to upgrade to 4.56 to match up with my tire size and iv looked online and all this stuff is just confusing me, i want to know exactly what all i will need to be able 2 do this

 

The thing is, there are a couple ways to do this. I myself would change axle bearings, axle seals, pinion bearings,pinion seal, and carrier bearings in the rear as well as the mandatory fluid and cover gasket change. But you only NEED to change the gearset, fluid, and cover gasket.
On the front I would change the axle seals, axle bearings, axle joints, pinion and carrier bearings, and pinion seal as well as the gear set and fluid. But again you only NEED the gearset and fluid. (and also permatex to seal the diff housing to the traction beam)
I would probably do wheel bearings (associated seals)and ball joints on the front depending on how old they are and how hard you plan to mud the truck and what tire size you plan on running.

 

i run 33x12.50s, ok so i know i will have to change my carrier because its only good for 3.92 and down but im having trouble locating a locker that will work for 4.56 and i really dont wana go to an open carrier

 

Is the rear axle swapped in? F150's had an 8.8" rear end originally and before that a 9". I don't even know what fullsize trucks used D44 rears.

 

Yes are you sure about the rear Dana 44. It should have an 8.8 in it. If it had a D44 the speedo won't work as there is no VSS on a D44 to send a signal to the speedo. As for a locker, there should be a Detroit Locker, or an ARB, or a couple of Limited Slips for a D44 with 4.10 gears(or lower) that should work. And if it is an 8.8 there should also be several lockers available as there is no ratio break for Ford rearends.

 

No you don't it has an 8.8.

 

You will need a new carrier for your front 44. the cut off is like 3.92

 

yes its a 8.8 sry once again just goin by what i was told, i have learned to not listen to the people around here because most dk what their talking about. so i have a d44ttb front and an 8.8 rear am i correct now?

 

Yup. That's what they originally came with.

 

ok thank you burnout400m, so any1 recommend a good brand of locker and gears for this set up? i was thinking about yukon

 

I've heard good of yukon and randy's ring-and-pinion. There's lots of big names with good reps out there. Detroit lockers are probably the most well-known with the best reputation.

 

Call Randy's and talk to Brian at ext5539. He'll hook you up with everything you need.

 

Randys is FAR from the cheapest, but they are Very knowledgable and helpful

 

ok thank u that randys site had just about everything i was looking for, also i know im puting a locker in the rear but would you advise puting a locker in the front or just leaving it an open carrier or can u even do that sry for my ignorance here im as dumb as a box of rocks when it comes to this stuff

 

It depends on the use and tire size. With a locker in the front you have to be gentle with 35" or bigger tires or you will start breaking stuff. What size tires are you running? you might need to think about just swapping the axles for 1-tons. If you keep the TTB I would stay with an open diff or get a limited slip in the front as it'll give an improvement in traction but won't totally lock the axles together so hopefully the LS will slip before something snaps, but don't count on that as a failsafe. Also look into hub fuses, basically a cheap thing that goes in the hub that's supposed to break before any of the more expensive stuff does.