I was going to say, order two seals, they are thin and easy to bend, and having a second one on hand makes the job go easier. Just follow this manual,
https://chevy.oldcarmanualproject.com/booklets/52mts20/index.htm It shows every step you need to take and what not to do when cleaning and servicing your steering box. On the seal, GM used the same size seal for years, most all the manual steering boxes use the same one, cars and trucks. Rockauto has them as low as $ .99 . The 11055 is a good seal you can get locally.
