REVISED SPRING CHARTS TO UTILIZE THE SPRING CHARTS THE FOLLOWING STEPS SHOULD BE USED 1 OBTAIN THE SPRING CODES FROM TAGS ON ORIGINAL SPRING OR FROM S P I LABEL OR FROM THE R P O FICHE IN CANADA CORRECT SPRING CODES CAN BE IDENTIFIED BY ONE NUMERIC AND TWO ALPHA CHARACTERS IN THE FOLLOWING EXAMPLE 6 LH FRONT 8 LH REAR 7 RH FRONT 9 RH REAR S P I LABEL IDENTIFICATION U S AND CANADA 1 G 1 B N 6 9 H X E 5 1 0 0 0 O 1 C90 C95 DF3 D3C D33 DO8 E5Z ETD FFL F40 GG1 GW9 GSO GU2 G89 JA1 JA4 KO5 K22 K99 LV2 WW9 WXO NA5 N81 NK1 NK3 N33 N67 GLW T87 UJ3 U23 U35 VO8 V10 WC3 WG2 YT9 Y56 01L SSC 42B 42I 42Q 42T 409 7SB 8WT 9WT 11A 9OA SC LH FRONT WT LH REAR SB RH FRONT WT RH REAR R P O FICHE IDENTIFICATION CANADA ONLY RPO AM6 A01 C49 C60 D35 D4N D9C E5Z E9Z F40 GX3 JA2 J41 KO5 K60 LB6 ME9 MXO NA5 NK5 OST PB9 QMW T76 UA1 UM7 UQ1 U19 U64 U73 VK3 V73 X05 YT9 ZG4 Z31 Z49 6RZ YRZ 71U 79D 79I 799 8BJ 9BJ 2 ONCE THE CODE HAS BEEN DETERMINED SELECT THE APPROPRIATE SERVICE REPLACEMENT FROM THE CHART IN CASES WHERE A STRONGER OR WEAKER SPRING IS REQUIRED THE DEALER CAN MOVE UP OR DOWN THE CHART AS REQUIRED 3 IN CASES WHERE THE SPRING TAGS ARE NOT AVAILABLE AND THE CODES ARE NOT ON THE S P I LABEL OR THE R P O FICHE THE DEALER CAN SELECT THE CHART TO BE USED DETERMINED BY THE MODEL ENGINE AND SUSPENSION OPTION OF THE PARTICULAR VEHICLE ANY SRING IN THE RANGE MAY BE SELECTED BUT A GENERAL RULE OF THUMB IS TO CHOOSE A SPRING IN THE MIDDLE RANGE A STRONGER OR WEAKER SPRING MAY ALSO BE SELECTED BY MOVING UP OR DOWN THE CHART FROM THAT POINT 4 WHEN THERE IS A DIFFERENCE BETWEEN PARTS USED IN THE U S AND THOSE USED IN CANADA THE U S NUMBER WILL BE FOLLOWED BY A U AND THE CANADIAN NUMBER BY A C UTILIZING THESE CHARTS SHOULD ENABLE A DEALER TO SOLVE ALL SPRING REPLACEMENT PROBLEMS 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET NF T REV 6 88 SPRINGS 1 7 000 GROUP