I GM04 1694 374 N S SPRING 1 2 SERVO CONT VLV 375 4 265 PLUG 1 2 SERVO CONT BORE I 8649467 376 N S VALVE 1 2 SERVO BOOST 377 N S SPRING 1 2 SERVO BOOST I 378 4 248 PIPE 2ND CLU 8656071 J 379 4 228 BOLT HEX M6X1X22 8649600 380 4 224 PLATE REL CVR 1985 5BA BS BN BX OB 8656082 4 224 PLATE REL CVR 1985 5BW 8658279 4 224 PLATE REL CVR 1986 8658279 381 4 224 GASKET REL CVR PLT 1985 5BA BS BN BX 0B 8656083 4 224 GASKET REL CVR PLT 1985 5BW 8658280 4 224 GASKET REL CVR PLT 1986 I 8658280 382 4 265 PLUG SERVO CONT PIN CUP 8611719 383 4 205 SEAL 1 2 SERVO PIPE TO VLV BODY 8656567 384 4 164 RETAINER 2ND CLU PIPE l 8649488 385 N S SPRING REV BOOST GAS ONLY I 386 N S SPRING PRESS REG MOD BOOST GAS ONLY 387 N S RETAINER PRESS REG 388 4 265 RETAINER LINE BOOST VLV 8656410 389 4 265 PIN REV BOOST STRAIGHT 8656620 390 4 265 RETAINER 1 2 TV BUSH 1985 5BA BS BN BX OB 8656502 4 265 RETAINER 1 2 TV BUSH 1985 5BW 4 Q 8662310 4 265 RETAINER 1 2 TV BUSH 1986 8662310 391 N S VALVE 3 2 ISOLATOR 1 2 392 N S SPRING 3 2 SOLATOR 1 2 I 393 4 265 SLEEVE 3 2 CONT 1985 5BA BN BS BX OB 8656096 394 N S SPRING CONV CLU 1 2 NOTE 1 PART OF VALVE CONT 1985 5BA 8644982 1986 6BT 8658852 1985 5BN 8658496 1985 5BS 8644981 1985 5BW 8658632 1985 5BX 8658600 1985 50B 8644980 I986 6BA 8658780 GROUP 4 265 I NOTE 2 PART OF VALVE CONT 1986 6BI 8658850 1986 6BM 8658786 1986 6BS 8662190 GROUP 4 265 NOTE 3 PART OF 4 005 8644915 GASKET KIT W SEALS 1985 5BA BN BS OB NOTE 4 PART OF 4 005 8646942 GASKET KIT W SEALS 1985 SBW I Q A wl A J Y 1992 GENERAL MOTORS SERVICE PARTS 0PERAT ONS BUICK 44C Y 4 000 GROUP 4 4 8 92