Im in a pickle! I have only a couple hrs to pull disc brakes parts off a 76 dodge aspen for my 69 tomorrow. Ive read the article/post on the swap. Just tired and my thinker in granny gear. unclear on a few things. The upper arms look different in the way they mount. Cross shaft 76 vs ecentric bolts on 69.still work? And lower ball joint needs upgrade to bigger one for newer spindle? Thanks for any help guys.