SR5 is:

In the good ol' days, means it came with a 5 speed, changed in the mid 80's.

usually you get with an SR5
A/C
Sunroof
Bucket SPORT seats (4-way?)
SR5 instrument cluster
SOMETIMES power windows/ locks (mine doesnt)
carpet headliner (mine doesnt)
carpet floors
SR5 door panels (mine has the mid-line ones)
EFI... i dont believe you can get a 85+ SR5 without EFI (i can be proven wrong tho)
Chrome trim (handles, mirrors, window trim, grille, moulding)and last but not least,
SR5 4/8 spoke wheels. (solid axle came with chrome steelies)

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