Hello All! Please forgive me if this sounds like a stupid question- But what did Chrysler change in all the front end parts in 63? Looking in the parts books for 63&4 all the part numbers change-such as tie rod ends, idler arm, drag link etc. Looking at the parts they appear to be the same, but all the books say a different part #- even the after market stuff! Can any one explain what the difference is? And /or why? Thanks, Joe Pierce. Numerous 64's [Non-text portions of this message have been removed]