I was decoding some rpos from my car and came across these.

6ZX : SPRING, COMPUTER SELECTED, FRONT, LEFT HAND
7ZX : SPRING, COMPUTER SELECTED, FRONT, RIGHT HAND
8NL : COMPUTER SELECTED, REAR, LEFT HAND SPRING
9NL : COMPUTER SELECTED, REAR, RIGHT HAND SPRING

Anyone know what these are?

They are the springs that are in the car. You know, the suspension components. A computer selected the springs for the car based on the options ordered for the car. It takes the option weights and determines the correct spring for each corner of the car.

So they are really computer selected? Thats cool, thanks.