60" CENTERED, SOUTHWEST SPEED STOCK GM METRIC REAR END ASSEMBLYALL NEW COMPONENTS & MATERIALSUPPER & LOWER GM METRIC MOUNTS COME WELDED IN PLACEFEATURES VENT, FILL, & DRAIN PLUG BUNGS5 X 4 3/4" BOLT PATTERNCAST STEEL HUBS (#601-187)COMPLETE STOCK GM METRIC 9" FORD REAR END ASSEMBLY INCLUDES:*HOUSING WITH METRIC MOUNTS*SOLID AXLES, 28 OR 31 SPLINE (GUNDRILLED AXLE OPTION AVAILABLE)*SPINDLE NUTS & LOCK WASHERS*11.75" O.D. ROTORS, EITHER .810" OR 1.250" WIDE, WITH 8 BOLT X 7" BOLT CIRCLE*ROTOR BOLT KITS*5 X 4 3/4" CAST STEEL HUBS WITH COARSE THREAD STUDS*8 BOLT X 7" ROTOR PLATES*DRIVE PLATES*WHEEL BEARINGS*WHEEL SEALS*ALL NECESSARY O-RINGS & BOLTS FOR THE HUB KITS*SPINDLE SNOUT SEALS*AXLE SPACER BOLTSGUN-DRILLED AXLES ARE AVAILABLE AT AN ADDITIONAL COSTWHEN ORDERING, PLEASE SPECIFY IF YOU WANT 28 OR 31 SPLINE AXLESREAR ENDS ARE 60" CENTERED; LENGTH OF THE REAR END IS MEASURED FROM THE LEFT DRIVE PLATE FACE TO THE RIGHT DRIVE PLATE FACE, IN OTHER WORDS, FROM WHERE THE WHEEL BOLTS ON TO WHERE THE WHEEL BOLTS ON