A-body 18 spline 4 speed

I have a 18 spline aluminum case 4 speed proshifted with liberty gears. I paid $1200 for it. the case has been polished but its a crash box type or slick shift in other words and cannot be down shifted.its strictly race but it came out of a 74 dart that went 8.50s 1/4 mile. dont like the liberties as the car kept breaking teeth on the gears until he installed jerico gears in it. maybe ya got a great deal, maybe its not race only, but pro shifted means crash box to me and isnt really built for a street car. if you got a good price on it thats great,if ya dont want it I know a guy who may.