[FASTASSBIRD]

Originally Posted by Baron Von Zeppelin

Only 2 pieces on my 06B 73 SD were June dated.
Rear Axle Housing
Pass Side Rear Brake Drum
-- possibly the radiator if 156 is a julian date

Engine Block Code XD
Matching partial VIN / original born-with engine
Cast date K 11 2 (November 11, 1972)

Head Code 16 Round Port
Cast date Driver head K 18 2 (November 18, 1972)
Cast date Passenger head K 28 2 (Nov 28,1972)

Intake Code LS2
Cast date K 17 2 (Nov 17, 1972)

Carb Code 7043270 JD Rochester Qjet
Date code 3572 (357th day of 1972 = Dec. 22, 1972)

Distributor Code 1112205
Date code 2L28 (Dec 28, 1972)

E.G.R. Valve Code MH 7040175
Date code 256 2 (256th day of 1972)

Alternator Code 1100928 55 amp
Date code 3E24 (May 24, 1973)

Radiator Tag Codes
Harrison
FC 1P AE 156

Transmission Tag Codes (THM 400)
PQ (application)73 (year) P20 (Pontiac) 1068 (sequence unit number)

Differential (10 bolt Nodular housing [HD], 3.08 posi)
Casting Numbers
N (nodular)
1235542 B
GM 15
Casting date F 5 3 (June 5, 1973)
3.08 ratio

Front brake rotors
Driver side date E303 (May 30, 1973)
Passenger side date E313 (May 31, 1973)

Front upper ball joints - original riveted
Driver side date C23 3 (March 23, 1973)
Passenger side date C24 3 (March 24, 1973)

Rear brake drums
Driver side date E 29 73 (May 29, 1973)
Passenger side date F 4 73 (June 4, 1973)

Muffler - Transverse Crossflow (GM over counter Service Replacement)
83398743
Date 10 H 8 (August 10, 1978)
Was bought as N.O.S. over the counter in 1981 and installed in 1981.

Rally 2 Rims all coded HM and still wearing factory paint
Three have date code of 5 23 3 (May 23, 1973)
One has date of 5 22 3 (May 22, 1973)


*Shipping date on Invoice was June 23

Radiator date is letter/number located between the large letters on the passenger side tank.


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