Proforged Tie Rod End Part #?
In your initial post you said you are using QA1 sleeves. If you are following through on that then you need to buy tie rod ends to match the sleeves. I'm guessing the sleeves will be HD and may require the larger "C-body" size.
Why are the prices different?
Does it cost more to manufacture the smaller ones? Are the larger ones sold in greater quantities? Are they being closed out? Have the larger ones been sitting on shelves because they are slow movers and made before the import tariffs were implemented? Who knows?