The turbo tranny is an R151F
Non-turbo tranny is W56 or similar.

They use a completely different clutch. You can tell if the tranny is the turbo tranny based on the black rubber plug in the bellhousing, if there is one, it's an R151f.

http://www.marlincrawler.com/clutch/heavy-duty/heavy-duty-clutch-kit-1200-lb

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