1981 ENGINE SERIES NUMBER AND SUFFIX CHART CK TRUCK 1 7 Y Engine Engine Model Descripiiun Coda Modal Description Cade 4 A 250D 6 CYLINDER LE3 CK1 Z w M T Fed Exc A R TUA C1 w M T Calif A I R TUF CK1 Z 444 w A T Fed Exc A l R TUB C1 w A T Calif A l R 4 TUH 292 I G CYLINDER L25 1 CK2 3 w M T A I R TSA CK2 3 W A T A Fl TSB l 305G 8 CYLINDER LG9 V A 1 C1 03 w M T Exe A I1 UAA C1 I6 w M T Exe A l R UAC C1 U3 vv A T Exc A R UAB C1 16 vv A T Exc A R UAD l 305F B CYLINDER LFS 1 C1 4 wIAl H UAZ 1 305H 8 CYLINDER LES C1 l w M I Exc A R UAJ K1 w A T A l R UAW C1 w A T Exc A I R LIAK C1 w M T A I R UBB 1 K1 w M T A I R s UAT C1 w A T A R UBC D2 w M T A I R UAU CZ vv A T A l R UBD 1 350L 8 CYLINDER LSB K1 w M T A I R UHA C1 w AT Fed A I R UJW 1 K1 w A T Fed A I R UHB C1 w M T NM5 Export K2 w MT A I R UHC Canada UZA K2 w A T Fed A I R UHD C1 I w A T NM5 Expert 1 DI w A T Calif A l R UHK Canada UZB K1 w A R Calif UHL K1 w M T NM5 Export K1 1 w A T Calif A l R UHM Canada UZC 1 CZ w A I R UHR K1 vv A T NM5 Expert 1 KZ w A T Calif A I R UHS Canada UZD CI Y w M T A I R UJU A 350M 8 CYLINER LT9 CK2 3 w M T Fed A R UHW CK2 3 w M T Calif A I R UHV CK2 3 w A T Fed A I R UHX CK2 3 1 w A T Calif A R UHZ 1 454W 8 CYLINDER LE8 C2 3 v1 A T A Fl TRL K3 w A T A R UDA C2 3 w M T A I R TRK K3 w M T A I R UCB DIESEL LFS C1 w Fed VLC C1 w Calif VLD 350P B CYLINDER LF5 C314 w M T A I R UKA C314 w A T A I R UKB GENEHAL N J1OR SERVICE PARTS OPERATION5 LT TRUCK 52A 1 31 1