Thanks StarTech, I may have written it wrong but meant that as you say the 4740-4741 are the Husqvarna original drag link part numbers. On eBay they have those parts numbers 4740-4741 adjustable but for $119 a pair. They also offer the 9599-9600 but for $94. I just wanted to be sure that the adjustable 9599-9600 will in fact replace the original 4740-4741 because that will save me almost $30.You got things backwards as the 532194740 and 741 are the non adjustable versions. It is the 532409599 and 600 that are adjustable.
You not going to find any cross reference as this is inside dealer info that I had access to several years ago. They were released to have solve the misalignment problems that the non adjustable couldn't resolve.