rear end up grade - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 01-04-2010
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Icon4 rear end up grade

ok i have a 96 ford ranger it has a 7.5 rear end with 3.73 gears im puting an 8.8 rear end under it with 4.10s

The only problem im having is that the rear end i got i got from a friend and he blew the gears in it. the question i have is will any 8.8 32 spline work for it? like an 8.8 for a mustang for instent?

im puting this rear end under it because im already on 31s but im going to lift it anuther 4inchs along with the 2inch lift thats already on it and put 32s or 33s and by puting this rear end under it i will have a thicker stronger rear end and i will be going from a 3.73 with open to 4.10 with limited slip

but if any one can anwer my question i would be very thankful and i could get stared on it
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Old 01-04-2010
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any 8.8 gears would work, but if you're replacing the whole carrier, you'd have to get a the same spline to match. some mustangs are 28spline, but some cobras are 31spline.
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Old 01-04-2010
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I need 31 spline and yeah i found 31 spline cobra rear ends i just didnt know if it would work

THANKS!!
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Old 01-04-2010
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Dang, did you get an expolorer rearend then? or an FX4 31spline?
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Old 01-04-2010
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an fx4 31 spline
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Old 01-04-2010
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good score, but you're sure its teh 31spline fx4 axle? not the 28spline?
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Old 01-04-2010
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im sure it came out from under my friends 01 fx4 and i counted it to make sure it was 31 lol i wanted to be sure

my friend blew the gears doing a burn out with 33s and just went and got a whole new rear end from a junk yard
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Old 01-04-2010
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they didn't make an 01 fx4. But in 02 they did, and the torsen on those the early models were notorious for blowing out, so i bet that is what happened. But yes, any 31 spline carrier would work for your 8.8.
lol that you counted. it is really difficult to do, espically when you end up with 29 or 30 and you're sure you got them all....i tried once....
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Old 01-04-2010
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oh maybe in is an 02 idk its an 0 something its newer than mine lol and yeah it was hard counting it lol

thanks for everything!
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Old 01-04-2010
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he got mine its a 02 fx4 had the torsen but the torsen grenaded and i got a new rear end so i sold it 2 him pretty cheap
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Old 01-04-2010
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also what gears would you guys recommend he run with 32's? he has a 3.0 5 speed and will most likely be putting a trac loc in that 8.8
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Old 01-04-2010
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with my 31's i have 4.10's, i run high RPM on hiway though, much higher that i like... but the power is lots! more than i really need, seeing as i still have 4x4 low... i can spin all 4 tires in snow, 4H... so i would go either 3.73's or 4.10's
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Old 01-04-2010
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Go 4.10s with 32s unless you plan on going to 35s in the future then go 4.56s
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Old 01-06-2010
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i think im going to go with 4.10s
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