Axles ID Tags

[usmcjones1988]

I can not find what the tags on my Dana 44 front and Ford 9 inch rear tags means here are what they say:

FRONT
DANA 44
4.09 D8TA VE
610049 9


REAR
FORD 9 INCH
WFE-OAAN 7JB
4L11 9 393D

If anyone can help thanks.

[usmcjones1988]

I found that the 610049 means 1978 1/2 F150 Im guessing the 4.09 is the gears, maybe? the D8TA VE I have no idea. As for the rear I know that 4L11 is supposed to be the gear ratio but that doesnt make sense to me.

[usmcjones1988]

Also im just going to add this is is from my transfer case, maybe someone might know this as well:

TRANSFER CASE
NP205
205 2 196
11 4 77
D77A7A195AB

[averagef250]

I don't know all the nitty gritty numbers, I know the basic stuff.

Any Ford part number like D4TE C7TA, etc. the first 2 figures are the date C=60's, D=70's, E=80's and so on. All your numbers there hover around D7 and D8 which means they're all newer than 1977 parts.

The front axle has 4.09 gears in it and the rear has 4.11 with a limited slip. if it was a plain jane open diff it would just say 4.11 not 4L11.

I'd bet your 205 was built on November fourth 1977.

[usmcjones1988]

thanks that help im happy to hear that the rear is limit slip now does that take special gear lube for it being limited slip?

[averagef250]

thanks that help im happy to hear that the rear is limit slip now does that take special gear lube for it being limited slip?

Pretty much any gear lube you can buy has a friction modifier additive for limited slip diffs. If the diff chatters after an oil change you can add more friction modifier.

[usmcjones1988]

so i can run just castrol 80W90 and that should be fine

[fordman]

yes