Section B THM 400/475 Service Information and Repair Procedures

NOTE: General groups are listed in alphabetical order Bulletins are listed in previous to most current order

GENERAL
MODEL/YEAR BULLETIN NUMBERS SUBJECT SUMMARY
GROUPS

CASE All models BUICK 85-7-1 Explanation of locating transmission I.D.
CAN 5-7103 and explanation of all key transmission
CHEV 84-191 identifications.
CORP 857989
HM 84-25
OLDS 85-T-6
PONT * 85-7-2

1984/475 CAN 5-7111 Four new bolts are now replacing four of the six
EV, FI, FS, CHEV 85-18 studs in the rear case extension.
HR models CORP 857550
GMTC 85-B-40
HM 85-16

OIL PUMP All models BUICK 2-I-226 Rear oil seal installation emphasizing cleaning.
CAN 7-114
CHEV 54-3
CORP 827901
HM 81-59