rear axle gears

[90windsor]

i found a junkyard axle but i dont know what rear gears i have. the rear end is stock. there is no tag on the outside. its gone.

the one at the junkyard is 3.55 gears.

is there any way of knowing the axle code through the vin or door sticker?

my door sticker is

WB TYPE BODY TRANS AXLE

105 U514 NJ E H9

vin: 1FMEU15H4LLA80822

the guy at the ford dealer said 90% of them were 3.55 and some 3.73

my was a plow truck with a tow package, so im not sure

thanks for your help

 

[Justshootme84]

Axle Code "H9" is the Ford 8.8" rear axle with 3.55 gears and factory limited slip.

105 U514 NJ E H9

 

[90windsor]

Axle Code "H9" is the Ford 8.8" rear axle with 3.55 gears and factory limited slip.
105 U514 NJ E H9

thanks alot. looks like ill be buying that axle

 

[Yardape]

Wouldnt hurt to check the ratio to be certain, the possiblity is there that someone could have changed the gears. count the teeth on the pinion and divide that into the teeth on the ring gear and that will tell you the ratio. Much easier to check that then replace the tcase later if by slight chance it is different.

 

[Broncobill78]

You can also try spinning a wheel (it'll have to be on jackstands of course /emoticons/[email protected] 2x" width="20" height="20" /> ) and counting how many times the pinion/driveshaft yoke turns. If it has 3.55's it'll turn just a hair more than 3 & 1/2 times for every one revolution of the tire. If it's a 3.73 it'll be just a hair under 3 & 3/4 turns.