Still looking for answers on this i did a search but didnt find anything decent.. whats the best gears for running 33's with a 4.0 SOHC? I think i got the 4.10's stock but id love to get my gas mileage a bit better and get that kick in the pants feel back like it was stock.. if possible.

reccomendations? 4.56's? I may run 35's int he near future... but for now i do most of my driving on the highway and not as much offroading as i used to.

 

if you do most of you driving on the highway 4.10s is probably what you want to stick with. 4.56s will bump up your rpms a bit on the highway.

 

Im just looking to get more of that kick in the pants feel back, like it felt when it was stock, i know thats hard to do with bigger tires now i know that but would 4.56's help get that gas mileage back and that more powerful feel back? or stick to the 4.10s

 

4.88s and man up and jump to 35s

 

need me a lift first haha or some glass' fenders

 

4:56's for 33's, 4:88's for 35's

 

Really you couldn't find anything? lol
Must not have looked too hard.
4.56 for 33s, 4.88 for 35s. Economy will stay around the same if you gear real low, like 4.88s and 33s. At least I had the same economy with 4.10s and 33s vs 4.88s and 33s. 4.56 would be perfect.

 

perfect thats kinda what i thought. thanks alot

 

agreed 4:56= perfect

 

Why does your signature say you have lift and body lift. Doesn't say "wishful thinkin"

 

leave it at 4.10s until you get 35s. then go 4.88s. no point in paying for regear twice.

 

I wouldn't bother if you plan to eventually get 35's. You will want 4.88's for 35's.

 

5.5" Lift (total) = Body lift (+3"), prekey mod+shackles (+2.5")

 

well maybe its just my preference but id go with 4.56's for the 33's or bigger and 4.10's with 32's.

 

i love 4.10s with 32. but if he wants to go to 35s in the future 4.10s and 33s are the way to go in my eyes.

 

Do you plan on upgrading to 35's in the future at all? If so just wait untill then too upgrade yor gearing it will save you money.

 

Do the Math…

New tire size divided by the old tire size and you get a percentage.
Multiply the percentage time the old gears and you have a ball park for the new gears.

Example:
New tires = 33
Old tires = 31
Percentage of change (Pc) = 1.14% (not much)
Pc - 1.14 x Old Gear Ratio - 4.10 = New Gear Ratio - 4.65

Now 4.56 will give you the best overall performance. should be better on gas and should basically give you back the OEM Gear/Tire Feel.
If you do more trail riding 4.88s will give you a little more torque at the tires.

ALSO what evilclown312 said about future mods.
I run 33’s and will be running 4.56s with no future plans to go bigger.

 

i have 4.10s and 33's. it has decent lowend power and when im on the freeway doing 70 im turning jsut over 2200rpm's. i wouldnt want to go any higher than that for cruising. however 4.56's will turn higher rpm's at the same speed. if you had the 4.56's you would have a little more in the low end of power (so it would feel at least) and if you chose to go to 35's it would work out just fine. 4.88s seem to be whats sought after more, but you may want to find someones with that set up and drive it first before pulling the trigger

 

Dan have you driven a 4.0L SOHC Ranger with 4.56 gears and 33s? The RPM difference at 70mph is around 200 between 4.10 gears, it is minimal. 31" tires and 4.10 gears should turn about 2350RPM at 70mph, so with 4.56 gears and 33s it is only turning +/- 50RPM more than stock at 70mph.

My sport trac came stock with 4.10 gears and 30" tires, and turned 2400 RPM at 70mph. It worked great in town and on the freeway, it puts the SOHC in a great RPM range for power. I re-geared it to 4.88s with 33s and it turned 2600RPM at 70mph, still worked great and pulled awesome, though a little higher than necessary. I loved that setup in Oregon where the highest speed limit was 65mph. Here is it 70mph and people cruise at 80+ so it wasn't ideal.

 

I DO want to do 35's eventually... however i dont want to have to replace my axle. Apparently my current one will only support up to 4.56 gears, anything bigger like 4.88's i will need a different diff. So going to run the 33's for a while i think.

 

I was wondering the same thing.

 

Before i go ahead and order the 4.56's could someone please confirm this for me? are these the correct gears and part number??

Auto Parts: YG F8.8-456 - High performance Yukon Ring & Pinion gear set for Ford 8.8 in a 4.56 ratio. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon Ring & Pin

Also, are they different for the front and rear diff or do i just order two of these sets?

 

the front and rear are different, the front is a Dana 35. be sure to get gears for the IFS dana 35, they are different from the D35 in the TTB rangers.

 

ok lets try this again....

FRONT
Auto Parts: YG M35R-456R - High performance Yukon Ring & Pinion gear set for Model 35 IFS Reverse Rotation in a 4.56 ratio. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up

REAR
]]Yukon Gear & Axle. Error.


that should be right

 

ive also been told 4.56's with 33's. maybe a good next investment... whenever you get them installed please tell me how they are!