I went with the Napa Heavy Duty axles (p/n 1258) and have had excellent results with them so far over the last year and a half. The boots have held up well, too. Here's the link to them on Napa's website, although you can find the same axle under a different label on different websites. I chose to order mine through Napa. This was based on the reviews from another T4R user here, I just can't remember their name. But he left a convincing review that I decided to go with them as well.
Link is below.
NCV 941258
I used that NAPA one also in january of 22. My passenger side boot is already ripped. I moved to Maine and used my 4WD a lot more this past winter than I ever did in Kentucky but think it should"ve lasted longer.