Does it make the noise with the clutch fully depressed and the transmission in gear and or in neutral? Which?
I found that spending a bit of time massaging the Z-bar and rod ends so they lie flat on the pivot points and are aligned in straight lines towards the opposite ends of the rods helped my linkage feel more efficient. I lube all contact points with CRC synthetic disc brake grease too. It won't wash out, has moly, PTFE(Teflon) and graphite mixed in a very high and low rated synthetic grease that won't attack plastic, rubber or nylon. It's an amazing lubricant.
They also sell a complete z-bar refreshing kit from Mopar that's available on-line at a lot of Mopar parts houses.