F450 Front Differential Problem

[BadLuckDiesel]

I bought a 2008 F450 4x4 about eight months ago. I clicked 4 wheel drive on for two seconds to make sure it worked. I haven't needed 4WD until the past week when it started snowing here. It will not engage 4WD unelss the truck is at a complete stop........once it is in four wheel drive it chirps the front tires. Long story short, it has 4.30 gears in the rear and a 4.88 front differential. I have no idea how or when this happened. The truck doesn't have any signs of ever being in an accident and Oasis says it came with 4.30 gears. I either need a complete front diff assembly with 4.30 gears or I need to know where to get a ring and pinion for the axle I have. I think that this truck is supposed to have a Dana Super 60 reverse rotation. I have looked online for 4.30 gears, and can only find 4.10 and 4.88. Any help would be greatly appreciated. Thanks

[BadLuckDiesel]

It definitely isn't working fine. You can only drive it about 2 miles an hour since one axle is spinning faster than the other........not to mention the transfer case will probably explode if I drive it down the highway

[Big Angry Hillbilly]

Ah you gotta be kidding.

I have seen this before also.

Pm me the vin, I will get you a locate on a gearset.