need help with 9 inch rear

I have a problem with parts for my 9 inch, the pilot bearing that comes in the kit to install the ring and pinion is a different size, (bigger) ive tried 3 kits and the same thing.can some one help, or do i have a different axle.

 

[CodePoet]

Is the problem that that bearing won't slid onto the pinon? I beleive that the pinion bearing will need to be pressed on. I buy my 3rds already setup and are usually cheaper that way.

http://www.ford-trucks.com/article/idx/9/065/article/Ford_9_Inch_RebuildGear_Setup.html

 

[JDraper]

Dumb question, but are you sure you have a 9" rear? The Ford 8" rear is very similar, but has a smaller pinion shaft (1.188" vs. 1.313" for the 9" rear). As far as I know, all stock 9" rears have the same pinion size. Aftermarket there are some 1.513" diameter 9" pinions available, but those are mainly meant for race vehicles.

 

[cole01]

its the small bearing in front of the pinion gear( i think its called a pilot bearing) not the 2 pinion bearings, the axle came out of a 1966 bronco and i was told it was a 9 inch and as far as i can tell from pictures it looks like a 9 inch except that bearing.