Simplest...
Put a zip tie on the shaft against the shock body, set car down, lift car back up measure distance the body shoved the zip tie up the shaft... that's going off the spring is at least snugged against the mounts and no major preload of the spring at full extension.
Im going to nerd out a bit here...
Take travel length times spring rate that will give you your ride height spring weight..
Example 2" of compression at 750lb/in is 1500lb per corner.
IIRC a 2.5*10" spring has roughly 4-5" of travel before coil bind.
With 1:2 shock to wheel movement ratio.. 2" on the shock is 4" on the wheel.
If you go from 750 to 1200, your spring travel will reduce to 1.25" and wheel travel will reduce to 2.5"
Pro to less wheel travel, less likely to have body roll
Con to less wheel travel, more likely to pull tires off the ground in bumps/turns
The latter does make for good action shots😂
