This is a good used, complete, 3.45 Ford 9" nodular "N" case Detroit Locker center section.  The gears are Gleason Racing, deburred, REM treated, shot peened, polished, & EDM prep'd. Case is a Ford Racing "N" case
B series w/ 3.06" bearings & billet caps. Differential  is a  Nascar (Eaton) Detroit Locker. Can be run as is or an internal pump (Not Included) can be added. For those not familiar w/ the Gleason name, they are by far, one of
the premiere names in race gear technology. Not many ring gears can be back cut & lightened at this ratio and still perform the way these do! Hence the $1800 price tag when new. Documented history from new till put up for
sale. Great R/C gear!