My cuz has a 88' 4runner with 37" SSR's.. with 5.29 gears in it it does just fine (for the slow beast it is) but he's running 4.10's right now (blew the bearings in the 5.29 pumpkin) and.. it's slow... 3rd gear on the highway.. but dang it's sweet. He's got a 3.0 tho, not 22re. I think it will be fine as long as you dont want to go much over 65mph. (if your motor is running strong)

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