I paid $225 for the whole thing ,backing plate to backing plate. Like stated above, make sure its not full of water and rusted up. I'm pretty sure they have quit making the spider gears. They are hard to come by.

"All right, they're on our left, they're on our right, they're in front of
us, they're behind us...they can't get away this time"

Lt Gen. Lewis B."Chesty" Puller, USMC