Tranny Issues

[adt22-at-drexel.edu]

I'm trying to get the drivetrain squared away on my T34.  At first I'm gonna try to 
crank out a T34 Prime Mover (thanks for legitimating my tank Steve).  

Couple of questions regarding belts and chain:
What do you use to break chain.  There seems to be a chain breaking tool - wtf?  
Might I have any sucess with a hammer and nail?

I got sprockets that are for #35 roller chain - McMaster has a footnote that their 
#35 roller chain is "rollerless roller chain" - again, wtf? and should I care?

Is there a difference between 4L and A section belts?  McMaster doesn't seem to 
think so - the twist lock they carry is for 1/2" belts: both 4L and A.  
I've tried getting a belt from Pep Boys, Advance Auto Parts, etc. but everyone wants 
a car model or an old belt to look at, they can't do anything with specs . . . I 
guess I'll just overpay for twist lock from mcmaster. 

Finally, how is everyone keeping shafts from travelling laterally?  Is it not a 
problem?  Should I use a shaft collar that sits on the sides of a wall - would the 
friction be a problem?

Thanks,
Amir