Ive got a 06 f150 5.4 4x4. 6" rough country suspension lift with 33x12.5x17 Toyo MT. As of now it feels like there is already stress on my trans. This weekend im puttin on a 3" body lift and upgrading to 38x15.50x20 Nitto Mud Grapplers (if I can squeese them in under there) I know ill need to change gears, but dont have a clue what it is i need. I do mostly around town driving, well, and of course the mud pits, wet hills, and sloppy roads every chance I get. All the good info Ive got from here has got me and Pearl where we are today so I thank you all!!! And would love to hear what all of you have to say about this....Thanks again...

 

Since you are going with 38's and do mostly city driving, the general consensus would be to go with a 4.88 r and p ratio. You will be very happy with that combo.

 

as said before, get some 4.88 yukon gears.

 

?? I am familiar with 4.88.... ... 4.88 r and p ratio? im lost again. what is this?

 

Ring and Pinion

 

x3 on 4.88s

 

X4 4.88's

 

5.13









just kidding 4.88

 

sounds like Im gonna need 4.88's....lol...Ive been looking on like summit and jegs and cant seem to find ring and pinion gears for the 06 f150.... should i b looking somewhere else? searching for a different year or something? or something? i could use some help!!! i feel naked without my truck, ive got to get her up and going!!! thanks everybody...

 

call wayne at diffsonly.com he had the best prices when i was looking for gears.

 

And he still does have the best prices, you will not find a place cheaper!

 

i find this chart helpful with questions about what gear to choose .
and according to the chart the guys are right on the money for 38's

http://www.motivegear.com/pages/charts/CHART.pdf

 

THANK YOU EVERYONE! Im going to order some 4.88's today