kd4gij

Ok 99 F150 xl 4.2 auto rear wheel drive axle code is 27. The charts I find show 3.31 non ls for F250? So what read end do I have?

97badass

4.10 open

akdoggie

Do you have 7 lug wheels? If so, you have 3:31. If 5 lug, nothing comes up for Gen 10's other than that.

97badass

He won't have 7 lugs with a 4.2. And the sticky shows it's 4.10. If he looks at his axle tag it should say

akdoggie

27 code, 2000 7700 Ford w/5300# shows 3.73. This is out of my 2000 Ford truck parts/warranty book I just dug out. The 7700 shows a 5300# rear axle, and my book (Ford printed) shows a 3:73. I found another showing a 7000# axle with 4:10, but not in a Gen 10 but a SD. I think the OP needs to read the axle tag and stop the confusion. Not everything in the sticky is 100% correct, but 99% of it is good. lol

kd4gij

Well it is raining now so getting under it is out. It is 5 lug 4.2 v6. 2wd The door sticker says axle 27. The vin# on the door sticker matches the dash and my title. Oh and it is disc front drum rear.

kd4gij

Ok The tag on the rear end is 3 31 88 9A12

05 super

1997 - 2004 Ford F-150/250\

L - Limited Slip Differential
C - Conventional Differential

Code \ Ratio
18 \ 3.08C
19 \ 3.55C
24 \ 3.54L
25 \ 4.10C
26 \ 3.73C
27 \ 3.31C
28 \ 3.73C
B5 \ 4.10L
B6 \ 3.73L
H9 \ 3.55L

i found this..it appears youre right about the 3.31..