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	Group 5.000 Brakes & Rear Axle - Illustration 14

1971 DIFFERENTIAL IDENTIFICATION CODE

NOTE: THIRD LETTER ADDED TO CODE TO DESIGNATE THE MANUFACTURING DIVISION.

CODE	MANUFACTURER
O	OLDSMOBILE
B	BUICK
P	PONTIAC
C	CHEVROLET
K	MCKINNON

STAMPED CODE SYMBOLS 3/16" MIN. HEIGHT TO BE LOCATED ON R.H. TUBE FRONT SURFACE AS SHOWN. THE TWO LETTER CODE IS TO BE FOLLOWED BY THE MANUFACTURING DIVISION'S CODE LETTER, AS SHOWN AT LEFT.

THE THREE LETTER CODE IS FOLLOWED BY A NUMBER (1-366) INDICATING THE DAY OF YEAR BUILT.

TO BE STAMPED SO SYMBOLS ARE RIGHT SIDE UP WITH AXLE IN CAR POSITION.

SERIES		CODE	GEAR RATIO
STANDARD
Exc. 348		R2	2.56
		SA	2.73
		SC	3.08
		SR	3.23
		SE	3.42
348		SI	2.56
		TA	2.73
		SM	3.08
		TG	3.23
LIMITED SLIP
Exc. 348		R3	2.56
		SB	2.73
		SD	3.08
		SS	3.23
	Exc. W30	SH	3.42
	With W30	TM	3.42
	With W30	TO	3.73
348		ST	2.56
		TB	2.73
		SN	3.08
		TH	3.23

SIDE VIEW OF R.H. BRAKE DRUM

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