The wide 67-72 factory dimension type sway bar will interfere with rims with more than 4.5" backspace. Running 17" rim with 5.5" backspace is the key to getting big 275/40/17 on 17x9 rims up front. Or you can run 5" backspacing with 16" rims and smaller tire.
Better motor mounts. biscuit 67-72 type can split easy. There are Mity Mount and other brand mounts that have a locking thru bolt in them though.
The sway bar is inside the k-member
Sway bar doesn't hang down low in the front like a early type does especially after you add sway bar poly bushing adapters.
With a 73-76 K-member with factory sway bar LCA tab or welded tabs you can use a cheap ~$100 ebay new sway bar. With the 67-72 ~$100 type, you need buy a good sway bar adapter kit from energy or buy the $275 www.firmfeel.com sway bar.
See how the sway bar hangs low here on the nice firm feel setup:
This is how the firm feel brackets with LCA that didn't come with a 67-72 sway bar attach. Much beefier than the addco brackets.
Note: the bolt hole drilled and outlined in the center of the LCA is for a narrow 73-76 sway bar that didn't come with factory sway bar.