Originally Posted by RussF

Actually its important to make the shocks all the same length. I used calipers to measure mine and make them all the same. I think it was 63mm from top of the cap to bottom of the mount. I could be off the measurement a bit but try your best and make them equal.

Originally Posted by jha07

I don't recall the actually measurement. For the rears, I screwed in the shock end all the way, minus 2 threads. For the front I when in all the threads.
Your droop screws will ultimately control how far your suspension goes down. As long as the shocks are long enough that they don't limit travel before the droop screws you'll be ok.