OD question

["Matthew Wilder" <mwilder@top.monad.net>]

Hello,
  A friend of ours just got his TR4a tranny and OD rebuilt.  The rebuilder
told him to run 30 wt oil in it instead of the gear oil all the books we
have say to use. Dad put the typical 80 wt type stuff in "Mom's" car, but it
never worked right, didn't want to stay engaged. What say the experts on
this list?  How about for racing or auto-x use?

Matthew Wilder
'67 TR4a E-prepared auto-xer, no OD yet
http://top.mcttelecom.com/~mwilder/