there's scattered bits about shock placement in the archive, but I thought i'd pester everyone with a new thread.

for those of you running 12" or longer shocks with a suitably modified front-suspension: at what position (or %) do you have them mounted on level ground, and if not coilover, how tall are your springs? i.e. have you biased your suspension for more uptravel, downtravel, or tried to stay 50/50?

i'm aware of the common thought here on PBB to run at least 60% down, 40% up for rock crawling (going for more down-travel after that). As always, I'm curious to know what rover folks have been up to, whether or not you run the same placement front-to-rear, and if you kept relatively stock mount angles.

I'm still trying to decide what the best setup will be for my rig - look forward to your comments.

cheers,

isaac

I run 99012's in the front, stock location, my own shock towers and mounts. 50% up down seperation.

Without an angle on the shocks, I don't see how it's possible to get 60/40 on a rover suspension.

j

thanks for the reply john - this is as I suspected; shooting for 50/50. a lot of the non-rover guys do end up having what seems to me really tall bumpstops to keep the shocks from bottoming out . . . the offset ratios in favor of droop explains that easily enough.

as far as not hitting that ratio - why not? The percentage up/down is just a function of the the distance of your mounts in relation to the shock. taking your 99012 -

~33 extended (mx)
~19 compressed (mn)
50% downtravel (biasDwn)
the eye-to-eye result (e2e)

e2e = mx - ((mx - mn) * (biasDwn*100))

roughly your mounts are sitting at about 26" apart, allowing 7" uptravel, and 7" downtravel. if you move the ratio to 60/40 biased to down - you would just need to shorten the mounts e2e to about 24.5".

granted, these numbers have nothing to do with actual wheel travel, nor do they consider the available travel in your springs.

assuming you have around 21" spring for a 5" lift, and that the EB1 eye is roughly 2" up from the bottom perch (assuming again a common stud-eye adapter), this would put your upper shock mount on the tower (ballpark) at about 7" above the top spring perch. is this sounding close?

to get to the 60% down ratio you'd just need to drop the top perch down 1.5", or stack the bottom mount up 1.5" , no?