im starting my t2 diff swap and the t2 diff has brand new carrier barings (diff bearings) can i use these or do i need to buy bearings for the fd rear and have them pressed on. The # on the bearings is R45Z-1 and the one on the fd diff says R45Z-5 they look the same are they interchangable?

 

Whats the whole point in this??? Just curious, See tons posted about it but nothing saying why.

 

It's much stronger and will not break while launching with slicks.
John

 

because viscous can hold up to drag racing better than the stock torsen unit.

*edit* u beat me to it lol

 

nevermind bought new bearings from mazda anyway!

 

You may want to get new oil seals as well (you will need two). They are pretty damn cheap and may prevent a leak down the road.