I prolly should have had a notched cross pin on mine. I ended up just shaving down one tooth just a hair with a dremel tool. That gave me just enough clearance.

Williys, Not sure if you saw it but I did a write up with pics, it's in the other/powertrain section at the top. It may help ya some. gear swap write up rev A

 

that guys a fool ! You hear, if he wants to change his name on his jersey half way through the year, he MUST buy up all remaining jerseys that are out there with the last name "johnson" before they begin selling the "Ocho Cinco". What a schmuck !!

Now I know your name !! crazy.... Watch yo self now !

 

hahahaha yeah i know and he's not even that good.

oh well thats only one of my names i have hundreds...

 

what about me

 

your truck is in the shop so hush...

 

my truck's a parking lot queen, trimble? would that make your truck the parking lot king, lol... don't get jealous just because i take the time to clean the sh*t off my truck's frame, unlike *someone* else i offroad with!

 

im thinking of ordering 4.10's too but im not sure how much would it cost for a 4x4..

2005 lariat f150 v8 5.4 my diffrential has 12 bolts@ the rear does that mean i have a 9.75" or 10.25" or?

 

well i have been doing some thinking and i think i have decided to just wait a little bit more and upgrade to the bigger 10.25" or what ever it is rear axle...i dont want to pay for gears and the break an axle and have to start all over...does anyone know how much an axle like that would cost? and where would i get it? junk yards? also what gear ratios did those come with? because if they are something like 4.56 i might just keep those gears in it...i dont know. what do you guys think? Thanks

 

keep in mind that the 10.25 is a 7 lug. you will not be able to rotate tires without taking them off the wheels, and switching them over, as the bolt patterns will not match. the 9.75 is an excellent axle, will be the same 5x135 pattern, and the L guys have run tons of power through it, no problems. it is actually about on par w/ a D60.

 

i have the 8.8 though. and i think that is too small...maybe i will just upgrade to the 9.75. but it seems like if i am swapping axles, i might as well go ahead and put the best in it...

 

I've got rooms for them in the Tenderloin when they get here.

 

I hate to bring this up but...I have 6" lift with 35's. I found out to bring the truck back to stock I would need like a 4:09 something. so I was going to get 4:11's but after reading around alot of people said go 4:56's I was wondering what about 4:30's? is anyone running that ratio? I am afraid that 4:56 are to much. I am looking a little more than stock and I am putting a rear locker in it. thanks for the help.

 

Go with 4.56's. Its a perfect gear for 35" tires on our trucks. And there is no such thing as "too much". Highway will still be fine, and you'll have some extra grunt down low, where ya want it.

Heck, I have 35" tires and will be going with 4.88's, just to have the extra gearing on my side. If you pay for it, might as well get your pennies worth.

 

The formula that I used was:

New Tire Size / Old Tire Size X OEM Gears = New Gears.

35 / 30 x 3.55 = 4.1416666666666666666666666666667

Based upon this formula, I went from 3.55 to 4.10.

Keep in mind that I am gearing for daily driving in commute traffic. I would surely benefit from 4.56 if I needed a whole lot of torque for towing, off-road driving, + pulling myself out of dirt & mud. But for every day on-road & highway driving, the 4.10 is fine.

 

everybody thank you for the advise. I am going to go with the 4:30's I still tow with the truck but its also a daily driver and I drive 40 miles everyday to work and back. I am also going to go with a rear locker and when I get back from deployment I am going to through in a ati pro charger. the truck already has a 6" fabtech with 35" toyo muds, hypertech computer programmer, throttle body spacer, and cold air intake. again I want to thank everybody for the awesome advise!!!