Special Pinion bearing for Top Loader??

i'm swapping ratio's in my Strange Top loader from 4.29 (9") to 4.56 (9.5")and a buddy tells me that the pinion bearing needs to be ground to clear the crownwheel teeth

I'm gonna have a proper look tomorrow night but this doesn't sound right. I'm figuring grinding a taper on the bearing center will weaken it beyond measure. If there is insufficient clearance, there should be a bearing maunfactured with the right clearance, right?

Anyone come across this problem before?? or can suggest the right bearing??

I appreciate the help.

Cheers
Russ

 

call this guy..he knows all the bearing #'s you need to do this
andy..1-816-645-7150 or 1-660-645-2151..cell
www.myspace.com/daveloweswr

 

Russ; if you're close to Brisbane, take it to RayDiff, he's got all the talent and proper tools, or call him: 07-3376-1827. (Western Suburbs Diff Service)

Bob

 

Russ
Big job changed mine over and had to grind a lot out of the housing, grind the tips off the crown wheel and get a few parts out of strange all a pain
mail me if you want the detail

Andrew