I wasn't aware you had to. There is a measurement, you set it to that, and your done. Difference between between bottom ball joint, and torsion bar adjustment blade 2 1/2" + or - an 1/8th. Unless you like it different than factory.
To snapetwo:
I'm just trying to help, maybe play devil's advocate a little. The truth is those aftermarket k-members are sweet pieces, if I could justify the cost I would already have one. If I was to pick I'd go HDK.
Seems like you know the pros and cons, I'll STFU.
Enjoy!
:D
