will my 33s ruin tranny/rear end? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 10-19-2008
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will my 33s ruin tranny/rear end?

So far she has been running fine, but my cousin is starting to say that running my 33 inch mickey t mtzs are gonna ruin my tranny and rear end. is he right or is he jealious that i bleed ford blue and he has a chevy?
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  #2  
Old 10-19-2008
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What tranny/rear end do you have? Gear ratios?
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  #3  
Old 10-19-2008
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i never checked, whatever a stock fx4 has
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Old 10-19-2008
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auto trans
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  #5  
Old 10-19-2008
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dont stock fx4s come with 4:10s?
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  #6  
Old 10-19-2008
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There should be a code on your door sticker near the stock tire size...see here to decipher the code: http://www.therangerstation.com/tech_library/Axles.html
Quote:
4) FX4 Rangers 99-current come equipped with an 8.8 rear and 31-spline axles with either 4.10 or 4.56 axle ratios.
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  #7  
Old 10-19-2008
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Ruin it.. No.

Add some extra weight and strain/wear... yeah a bit.
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Old 10-19-2008
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if you have an FX4 with the 8.8 rear end with 4.10's then you are perfectly fine. It is plenty strong! as well as the tranny. Both are just fine! Jealous = maybe
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  #9  
Old 10-20-2008
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yea thats what i figuered, imma try deciphering that code tomm, but im positive i should be fine. I think hes just jealious that hes running a little s10 with no character and i got me a fx4 beast! fx4 4 life baby!
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  #10  
Old 10-20-2008
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thanx for the info and posts guys
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  #11  
Old 10-20-2008
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Quote:
Originally Posted by jeffb502 View Post

4) FX4 Rangers 99-current come equipped with an 8.8 rear and 31-spline axles with either 4.10 or 4.56 axle ratios.
wrong.

on that quote.. mine doesn't have a 31 spline axles, FX4 rangers didn't start till after atleast 01.. 4.56 is very rare, if it was even done.


where ever you got that....
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  #12  
Old 10-20-2008
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it's gonna add stress to the components...

Stress = Wear&Tear...
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  #13  
Old 10-21-2008
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The FX4 wasn't introduced until 2002. In that year it was essentially a FX4 Level II that's 2003+. It had a 31-spline axle with 4.10 or 4.56 ratio. The 4.56 was incredibly rare but was offered for a few years.

Being that you have an 06 FX4, you most definitely have 4.10 gears. They weren't offered with anything higher than that. That's easily checked by looking at a small tag on the rear axle pumpkin.

As far as if it'll ruin your transmission or rear end, it won't. Many many Ranger owners have run this setup without any problems whatsoever.

Sounds to me like your cousin has the jealousy bug.
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  #14  
Old 10-21-2008
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I think your wrong, the FX4 did not come with 4.56 gears.
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  #15  
Old 10-21-2008
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Quote:
Originally Posted by 04blackedge View Post
I think your wrong, the FX4 did not come with 4.56 gears.
Go to www.lapointauto.com Click search and then put that you have a 2003 Ranger and you're looking for a Rear Axle Assm (RWD). The very bottom option is 8.8" ring gear, 10" brakes, 4.56 ratio.

Try this website too. http://www.airportautopartsinc.com/

http://www.westwoodauto.com/

All are reputable local salvage yards but that's a national parts lookup system that is employed by many salvage yards.

The Ranger Station has the same information. Axle code R8 or 98.

http://www.therangerstation.com/tech_library/Axles.html
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  #16  
Old 10-21-2008
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Quote:
Originally Posted by 04blackedge View Post
I think your wrong, the FX4 did not come with 4.56 gears.
Its not saying that ALL FX4's came with 4.56's. I believe only SOME of ONLY the FX4 Lvl 2's came with 4.56's.
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  #17  
Old 10-21-2008
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Quote:
Originally Posted by 04blackedge View Post
I think your wrong, the FX4 did not come with 4.56 gears.
its rare but they did make them.


as for the original poster, i am running 37s, have 109k miles on the truck and it runs great.
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  #18  
Old 10-21-2008
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Lol but Beard, you don't have a factory transmission OR rear end!!! :)
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  #19  
Old 10-21-2008
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His tranny is upgraded, but it are still factory. The rear end used to be factory when he was running 35s if I remember right.
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Old 10-21-2008
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  #21  
Old 10-21-2008
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it was factory for a long time. i didnt replace or beef up stuff because it failed, i did it because i wanted better/bigger/beefier
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  #22  
Old 10-21-2008
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I'm also an exception.
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  #23  
Old 10-21-2008
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Dont worry about it man..it fine
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  #24  
Old 10-21-2008
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i'm not so sure about the trannys, you can run the 33's just fine. I got some on my ranger with 4.10's. i just hate autos they work but i would much rather run with a manual. it will handle the new meats just fine
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  #25  
Old 10-21-2008
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I've got an 02 FX4 on 33's with 4.10's and an auto tranny with *gasp*166,5XX miles on it. I'll tell you this, flatground, it'll run like a champ, go to climb any hill, and you're gunna loose speed due to being under geared. Now, the flip side to that is I have a buddy who has a 95 STX with 4.56's and he claims he's running almost too steep a gear, so there really isn't a good middle ground on gearing with 33's.
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