489 center w/ 4:30 sure grip

I have a 489 center section for 8 3/4. It has a clutch style sure grip and richmond 4:30 gears. this has little use as it was only used at the track and that was only maybee 10 times. the car these were used in is long gone and these have been sitting around my garage for a bunch of years. they are very clean, not all greasy at all. they made no noise and were working fine when last used. if these do not sell i will just take the sure grip out and keep it for another time.
located in long beach ca. 90802
$400 plus the ride.

I also have a peg leg 3:91 in a 741 case for $100