transfer case differences?

[midnightbluS10]

I was browsing this, and noticed that they have the BW1372 listed for SyTy's. Were there actually any in these trucks? What are the differences between that one and the 4472?

 

[jwaller]

the sy and ty have different cases.

the ty's have a larger output shaft with a higher spline count. thats the only real differance.