tranny questions

[79k20350]

looking around ebay i found this:
http://cgi.ebay.com/ebaymotors/4-8-5-3-5-7-6-0-CHEVY-GMC-MANUAL-TRANS-NEW_W0QQcmdZViewItemQQcategoryZ33727QQitemZ8033520155QQrdZ1
now the question is, what is it? is it worth trying to use it? what kinda gear ratios? any inherant problems? (like the nv4500 5th gear) thanks guys!

 

[boz42]

prolly a getrag. it is german made i believe. that is really all i can tell u though.

 

[lamberthkp]

 

[sweetk30]

mostlikly geartrag crap.

and if it aint castiron it isnt good.