setting bump stops in rear

[wood]

I have searched all-poo's site and also other forums but I haven't found the info I need. I have a pair of all-pro's 5.5" rear springs that I picked up used. I will be installing them on an 88 4Runner. I need to know how far I can saftly compress these springs. Everywhere I have read says to set the rear bumpstop at 5". But these springs are used, will this setting still apply? If they are "broken-in" plus the extra weight of the runner, wouldn't it be a little too far if I set them at 5" uptravel? Any suggestions?

Maybe I will just set it at 5" and if I kink or sag them I will just get a pair of marlins( I plan too anyway but I want to get as much life out of these as I can)

Thanks and sorry for the newbie question

[WHITE_TRASH]

Id just set them so they stop the spring form going completely flat.

[donkeykong]

I thought it was not good to let them compress over 3"...I dont remember where I read that so dont take my word for it

[RE:Todd]

Put your truck on jackstands.  Remove the springs and dissassemble them.  Replace the main leaf and cut a block of wood the thickness of the left out springs.  Place the wood in between the spring and axle perch (drill a hole and use the center pin).  Bolt up the u-bolts. Now put the tires back on and cycle your suspension, taking measurements.  One tire compressed, one drooped, switch sides.  Then the whole axle compressed, then full droop.  This will give you clearance and placement of the bumpstops.  JCA on Pirate did a whole writeup of how we did it on the FToy.