okay i'll try this weekend. i do have the h9 axle code on the door jamb but i think i mentioned that the rear wheels spun oposite when i lifted the rear end off the ground. i'm just curious if i do have a limited slip or not. is it posible that the factory limited slip has not been taken care of and failed. would that cause the wheels to spin oposite? i'm not sure of the complete history of the truck but i do know tha not much on the truck is factory.Try cleaning it again, you want to rad the bottom line of numbers starting from the bolt. You can also compare your gear ratio on the front axle ID tag. If your axle code is "H9", you should have 3.55 gears and factory limited slip in the Ford 8.8" rear axle. The front Dana44 TTB axle should be open with 3.54: 1 gear ratio. At least that's what your Bronco came with from the factory.
Ok so here I am joining this thread. How can I tell what kind of front I have, if there is nothing readable on the door jamb? There is a tag on it but it read like this : 4 09 "upside down triangle" E7TA A. Thats the top line. Bottom line is this: "upside down triangle" 610267-6. Are these numbers irrelevant in figuring out my front end?
You are correct. Might look on the front TTB axle pumpkin for the ID tag, should have a 3.54:1 gear ratio to match the 3.55:1 rear axle. JSM84Ok....I am trying to figure out the code that should be on my rear end. I'm thinking it should be S807D 3L55 8 8 ....but the tag is no longer on my rear end. Does this sound like a common code? Also, in the driver side door jamb, it has an H9. I know this stands for the limited slip option, which I know that my rear end is a limited slip with 3.55 gears and 8.8 so....can anyone help?
You are correct, that is the tag numbers for a Ford 8.8" rear axle, with 3.55 gears and no limited slip or what's called an "open" differential.ok Here is my axle code S838J (FIRST LINE) 3 55 88 5A27(SECOND LINE) NOW I AM ASSUMNG from what I have read that this is a 3.55:1 ratio 8.8 rear end, now there was no L in the number so does this mean there is no limited slip? also how do I identify if it is a DANA 44 ,70 or what?any help would be appreciated> thanks in advance