Just let me know, and we'll set you up right !

 

CGer?

 

Haven't seen that posted in awhile !

and yes, we can arrange that ! Got tons of CGers walkin the streets !

 

Much appreciation.

 

I am currently saving up cash for 4.56's. Before my 33" tires, I was considering 4.10's, but with the bigger tires (and possibly bigger in the future) along with the occasional towing and utter lack of interest in MPG, I decided 4.56's would suit me better.

Now my question: How would 4.56 gears affect the overall towing capacity? According to the guide from Ford, 4.10 w/ a 5.4L on a 4x2 can do 9900lbs... so I was wondering if this is the kind of number I would be looking at w/ 4.56's w/ a 5.4L and a 4x4 (in 2WD of course). What would be my capacity and should I be considering turning off O/D?

 

You're absolutely right, there is no since worring about gas mileage in these trucks!

I think the 9,900 pounds is still way more than you should attempt to pull with the truck. There are other limiting factors, such as axle weight ratings, tire and rim weight ratings and the all important gross vehicle weight rating.

As for towing, if the truck keeps jumping back and forth between a gear (OD and Drive for example), pull it down into the lower of the two gears and give it a chance to lock the torque converter. A locked TC will help to keep your transmission temps in check and save a lot of wear and tear on it overall! If you can cruise in OD with the TC locked, then there is no issue leaving it there. Heck, there are times that I pull the truck down into 2nd and roll up the hill at 3,800rpm, but that is will about 6,000 pounds in tow, and I'm still not re-geared for my 35s.

 

Technically and legally, there is no mod you can make that will increase your tow rating. All the gears will do is make for a smoother tow.

 

Well, there is always some limiting factor... I know that the ratings Ford uses are estimates, and I have always estimated a 20-25% cut on that number in order to ensure a smooth tow. So, my question is more based around the fact that right now I tow a cargo trailer which probably is in the 4000-5000lb range.

But I've been considering purchasing a boat, and the size of the boat I get will be dependent on what I can tow (e.g. w/ 4.56 can I tow an 8000lb boat without any issues, or should I limit myself to 7500 or even 7000?) .

 

There is not a 1/2 ton truck made that will tow 8000# *comfortably*. You could probably tow it without incident, but you will definitely KNOW it's back there.

 

if the trailer is set up right you can tow 8000# safely and hardly know its back there, its all about distributing the weight evenly... we tow our 32ft boat every weekend with our 1/2-ton Dodge (dont come running at me with pitchforks, its my dads truck), it weighs right at 10,500#... it tows like my 19 ft bay boat, hardly even know its back there... tandem 7K# axles, 15 inch wheels 2 inch discs, it surprisingly stops on a dime... i'd tow it cross country if i had to...



i'd go with 4.56's... thats what im putting in my f150 when i get the coin... im considering 4.88's but that might not be as highway friendly

 

Yup. Tornadom and GLC nailed it. It will simply make moving the load easier, but DOES NOT increase what you can tow. Takes strain off trans.

If it helps, I will be going with 4.88 gears for my truck. I tow often, don't care much for MPG, and its only a slight increase over the 4.56's.

If you plan on towing often, or heavy, I would suggest 4.88's. These transmissions in our truck are a joke. Protect them and baby them as best you can.

 

I plan on 4.88s because I rarely drive on the freeway, and the extra grunt for towing will great!

How much better is the 4R75E vs the 4R70(w)E in the 4.6L trucks?

 

The big difference is the speed sensor set up; the ring teeth count is more on the 4R75W and how it is read by the computer; the valve body had a few upgrades; The 4r75w has a revised hardened sun shell and a torrington bearing setup in the TC

4r75 is said to handle a heavier load, but I have my doubts on just how much "stronger" it really is.

 

Too bad Ford didn't offer the 5R110 Torqueshift in the F150.

 

sure would be nice !


or a quality manual ! ! !


edit: just found this, kinda interesting:

https://www.f150online.com/forums/tr...torqshift.html