*SOLD* These parts came from my uncles C2 Corvette stash. He drag raced his BB 67 vette in the late 60's and 70's , and unfortunately p***ed away a few years ago. He left behind quite the collection of *****ing parts that i'll be listing forsale her on the HAMB These are both NOS, and NOT stamped with any GM codes. both have been modified by dressing the inside of the housing, i'm guessing to take a low gear ratio. Also the carrier saddles(line bored) are custom made and the torque side of the carries saddles have been machined out one use 1/2 studs, the other 1/2 bolts. Both have drain plugs installed, one housing has studs to hold the cover on. $300 each, or $500 for both- Casting number 3899143 puts these are 63-79. the Date code H275, my guess is that these were cast in 1975, but could be 1965. .