What ratio???

OkieFordFan · #1 (**permalink**) 10-29-2007, 08:42 AM

Can anyone tell me what rear-end ratio I have in my '05 F-350 DRW? The axle code on the door is 4N.

dustindiesel · #2 (**permalink**) 10-29-2007, 01:12 PM

should tell u on a metal tag on one of the rear end bolts..maybe even the driver door sill might have the ratio..or maybe thats where the axle code is

OkieFordFan · #3 (**permalink**) 10-29-2007, 01:27 PM

Yeah I have the code it is 4N, I just don't know what it means.

westcoaststrokin · #4 (**permalink**) 10-29-2007, 01:32 PM

Hope this helps. Looks like ya got 4.10's kinda like me.

37 = 3.73 non-limited slip (standard)
3L = 3.73 limited slip (SRW)
4L = 4.30 limited slip (DRW)
4N = 4.10 limited slip (DRW)

OkieFordFan · #5 (**permalink**) 10-29-2007, 02:37 PM

Thanks Josh that is exactly what I wanted!

LvTitan · #6 (**permalink**) 10-30-2007, 09:29 AM

i guess the codes are different for 250's.. ?
i have an 04 and my axle code is C1... what does that stand for ?
i know i've got 3.73 but was wondering which one exactly

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