Used set of Upper Non-Adjustable Hotchkis rear upper trailing arms. Also includes trailing arm mount braces. 
Bought off a gentleman that had them on a 1965 Chevelle. I used the lowers on my 69 but the uppers were different from '64-'67. 
See pictures for details. Eyelet to eyelet  measures 12.75"
Cost over $450 new. 
Buyer to pay actual shipping.
I have boxed and ready to ship.