i got a 94 150 4.9l...im runnin 38'' tires. im not sure what my current ratio is, but it doesnt want to go much over 50-55 without really puttin er down. i was wunderin if someone can let me know a better ratio or how to even find what mine is.

 

look on the sticker on the door and see what the axle code is then let me know and ill tell u

 

trans e...axel 18

 

nice idea on the gauges...i gotta get mine done too. ill have to come up with something a bit different though.

 

If it's factory, it's either 3.08 or 3.55. There is a tag on your pumpkin that will tell you exactly what you have. Did you instal the lift / tires or did the previous owner?

 

nope, bought it like that. really wanted 4 wheel, but it had my name on it.
i was told maybe 4.88. but im clueless

 

6cyllbill,
u have any issues with ur 2wd? she's nice

 

My limited knowledge is that a facory 8.8 axle can only handle gears as low as 4.56. I'm probably wrong. Does your truck feel strong? Perhaps it does have a 4.88 axle. Do you have a tach? What are your RPM's on the highway? Other members on this site can help you much better than I can.

Thank you for the compliment! I wanted a 4x4 also but couldn't afford one so I just made my truck look like one. The locking diff and aggresive tires DO help, but to be honest, a skilled driver with a normal 2-wheel and perhaps a basic limited slip could go just as far as I could.

It's all about whatever floats your boat, my Ford brother. Do you have any pictures of your rig?

 

3.55 with the stock 28" tires works well so you need 4.88 with your 38's to get the same final drive ratio.

 

well 18 is 3.08 coz thats what i got dont have a clue what the trans code e is mine is K wich is a C6

 

Trans code E is E4OD.

 

thanx Conanski.
6cill, ill have to go check out the diff to see if there is a tag on it. i dont know, but i really think its stock. it seems good low end, but runs high rpm round 45. no tach so i dont know exactly how high. explain a little bout the lockin diff.
only pics i took are in the garage...or somewhere on my page.idk. the interior is a fugly disco blue. but im country and get mud and cement in it so i am gonna leave it for now

 

Interesting. I can't even imagine how a truck with 38 inch tires handle with highway gears. If you really do have a 3.08 gear, you will gain more power and better fuel mileage by gearing your truck lower (4.56, 4.88) to accomodate the much taller tires. The taller the tire, the higher your final drive ratio will be, which means less power - and worse fuel mileage (less power, more throttle, more fuel being burned).

The locking diff has it's pro's and con's. What I tell everyone is that if you have a daily driver, a good limited slip is all you need. Having a locked differential can be a pain at times.

Pro's: More aggresive off road traction. Easier to bark the tires on a curve (it's a pro if you like to show off, heh). Straighter launches. Brake-stands are much sweeter (again, a show off thing).

Con's: The **** end has a mind of it's own at times. You have to be careful or you can lose control on wet or icey ground very easily. I learned this the hard way - almost. God kept me from sending my **** end into a soccor mom sitting at a red light. I got on it a little too hard and the locker caused my tail end to slide into traffic.

A good limited slip seems to provide good traction without so much of the blunt charactistics of a locker.

Just do your research before making a decision. An auto locker like mine costs as much as a limited slip. I don't mind my locker, I would do it again in a minute, but my truck is no XLT Lariat.

 

this was the 2005 ram thunder road i had it was geared 3.92 had 35x12.50 20s on it lol posi rear end *no it wasnt LS it was mo fugein posi* it would turn those over when u was doing 45 and put it to the floor say what u want but those 5.7 hemi's had some powa lol





i miss it

 

I would get 5.13s, and not settle for anything higher (numerically lower). 4.88s would almost be acceptable, but get 5.13s, you are turning a lot of rubber.