Two Different Types of SPC UCA?

I’m thinking about making the switch from JBA UCAs to SPC UCAs (due to alignment reasons). Whenever I look up the UCAs, two different styles pop up- both with the same SKU number. Any difference between the two? Any pros or cons? Both say they will fit a 2017 Tundra.

 

They changed the ball joint design last year to sealed instead of greasable, the ones of the left are the newer ones.

 

They went to maintenance free ball joints and that is the only ball joint available if you order directly from SPC. That arm is a new release due to their known bushing issues. My guess is that they don't want to lose customers.

https://www.spcalignment.com/product/25490

I suggest that you reach out to @memario1214 for UCA's.