Quest for 7's in the 1/8

rebuild and built are two different things, though. It's kind of like doing a valve job vs doing a 5 angle valve job plug port work. Massive difference.
Yes indeed both are what we have and suit many many roles !!
I have a 4 gear front & rear planetary 727
Factory in my 886 Power wagon it takes a lot of effort from the mild 318 to propel vessel but its solid and always works flawlessly and will live a LONG time.