Danruff93

The 19 axle code is 3.31 gears not 3.55 that's what I have in my 2000 and I put an Aussie locker in mine

jprevat

iTrader: (1)

http://www.fordf150.net/howto/decode.php must be wrong too then

hellonwheels2

No offense intended everywhere ive check its been called a 3.55

Danruff93

Mine says 19 but its got 3.31

greenheadkiller98

Thats strange. Mine is 19 and was 3.55 before i swapped for 4.11

Danruff93

Idk if mine were replace tho

Collin

I have an aussie in the rear on mine. As for the 8.8 front, that's a 28 spline
if your wondering. After this weekend it will have a traction device too

JCR 56

The 19 axle code is 3:55 open. H9 is 3:55 L/S.

hellonwheels2

New info that i found out makes a difference i have four wheel abs/speed sensor with disc front and drum rear ive gound out that i have the only open diff made for this model as ive been finding out on alot of stuff on this truck all the rest are ls 3.55 and 3.08 so now again i ask if i swap for a h9 what else will have to be changed

hellonwheels2

It also is a 5x5 lug pattern and a 10 bolt hoghead plate if that makes a difference