You're going to have to measure them. They're probably the same length as stock, but the only real way to check would be to jack up the frame and take the rear shocks off, lift the frame to where the wheels are just off the ground, and see if the shocks will go 2" longer than that.

89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim