FRAME SPRINGS BUMPER 7 412 SPRING ASSY Front Con t 68 71 Corvette exc Spec Perf Susp 427 454 C A C 331316 2 14 80 part No taped on spring 68 71 Corvette 427 454 Spec H Per exc Spec Perf Susp 331317 2 15 20 part No taped on spring 68 71 Corvette w C A C exc 427 454 3931824 2 15 20 part No taped on spring 68 71 Corvette 427 454 w C A C 3931826 2 16 65 part No taped on spring NOTE n order to uti ike the 7972 Spring Chart begin with the base sprung weight Se ect a options and their weight and add or subtract according y to the base weight Once accumu ated weight has been determined refer to the part number chart and se ect correct spring MODELS 19437 19467 BASE AND RPO SPRUNG SPRUNG FRONT SPRINGS COMBINATION POUNDS WEIGHT WEIGHT Base Only 0 677 5 662 5 A 31 Only 2 5 A 85 Only 5 CO 7 Only 4 0 co 8 only 5 l C 60 w LS 5 Only 35 0 C 60 w M 40 exc LS 5 33 0 C 60 exc M 40 LS 5 39 0 F 41 Only 2 0 l 5O Only 4 0 J 56 Only 4 0 LS 5 Only 99 5 LT 1 Only 11 5 M 22 Only 16 0 M 4O w LS 5 exc C 60 18 0 M 40 exc LS 5 C 60 28 0 NB 2 Only 7 5 N 37 Only 1 0 N 40 w LS 5 Only 13 0 N 40 exc LS 5 Only 12 0 T 60 Only 5 U 69 Only 3 0 U 79 Only 1 0 VO 1 Only 8 0 ENGINE SPRING NUMBER SPRING WEIGHT 350 STD 331316 0 thru 702 3931824 Over 702 454 STD 331317 O thru 777 3931826 Over 777 350 F 41 Perf Susp 3832518 All w Sp H Per NOTE For 7 973 Front and Rear Spring Charts See Group 7 503 7 447 TEE ASSY FITTING ASSY NIPPLE Air Suspension Level Control 64 69 Corvette 336015 1 74 special B 18 two ii hose take offs 3 278 65 70 Corvette 3891525 1 70 inlet manifold one B hose take off one hose take off 65 69 Corvette 3891526 1 80 S hose take off 65 72 Corvette 336013 1 95 8 18 pipe thd 1 hose take off 3 278 67 70 Corvette 3898593A R 1 50 VB 18 two E E hose take off 68 69 Corvette w T H 427 H Per exc P B 69 Corvette w C A C 427 3921918 1 1 38 FITTING ASSY vacuum inlet manifold 68 69 Corvette P B C A C 427 H Per exc T H 3921920 1 1 38 FITTING ASSY vacuum inlet manifold 68 69 Corvette P B w C A C T H 427 H Per 3921921 1 1 55 FITTING ASSY vacuum inlet manifold 70 72 Corvette w A T 350 exc P B 3973472 1 1 28 FITTING ASSY vacuum inlet manifold 1974 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET P A 308 7 41 2 7 447 7 4 REV 9 74