hey wassup! looks like we have the same truck!
I bought my 91 p/u a year ago, and it came with a lift. the front is a trailmaster... its just those drop bracket deals... about 4".
the rear came with lift blocks and stock springs! oMG THEY SUCKED off road. SUCH A HORRID RIDE! and it sagged. so my first mod to the truck was new springs.
imo, id go for NEW springs. i think they are worth it. not only for safety (lift blocks suc and put extra strain on the ubolts) but for ride quality. i was strapped for cash at the time, so i went with
DOWNEY springs. they were like $150 for the rear pair. great deal and i bought ext rubicon shackles for $40. the downey springs are supposed to be the same spring rate as stock, so they ride pretty good. the max lift that they sell is 3" though, so i got the ext shackles, which about evened it out with the frong 4". they recommend not to do both spring and ext shackle coz it fatigues them quicker, but i have no problems so far. they sag a little, but not too bad.
if you have some more money, maybe you can look into like allpro, or aor, etc springs.
youre running 2x at each end? DANG. that must ride kinda stiff no? my truck came with single 5000's in the rear, and dual 5000's up front. one one blown on the driver side. i thought that was kinda excessive, so i removed one and now i have single 5000s all around. i want to get bilsteins though! *drool*
im assuming you have a front lift... and dont know how high the lift is? im guessing its the drop bracket thingy too
so u can just measure from bolt to bolt on the lift. ... or u can go ask your local 4x4 store.
i went to mine a lot when i first got my truck and learned a lot from them
now with my doweys, my truck rides SOOOO MUCH BETTER. i took it off road after i got them, it made a HUGE difference!
check my signature for my truck specs and pic.
do it the right way, and get new springs.
__________________
2003 4Runner Limited 4wd V8. Bone stock except for the Nitto All Terrains.
My Rig
91 Ext Cab 4x4 Yota, black with 4" front IFS trailmaster lift, 3" Downey rear springs, Downey Rubicon extended shackles, and 2" body lift. 35" BFG M/T w/ 4.56. Centerforce II clutch, Rancho 5000s all around and Rancho traction bar, K&N Air filter, Flowmaster, ARB Rear Diff Air Locker, Custom "Mad Eyes" light covers, Extended Diff Breathers, Hella Vision Plus Headlights.
My Rig