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Old 08-10-2010, 09:58 AM
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Originally Posted by KULTULZ

The balancers are different, but I have not come across a detailed explanation of the difference(s).
Below are passenger car balancer descriptions-

Harmonic Balancer- OEM repl. All 400NO M.

Casting I.D. No- D2AE-C
Service PN- D2AZ-6316-C 73/74 74/76 W/O AC

Casting I.D. No- D5AE 6316-DA
Service PN- D5AZ 6316-B 75/76 A/C

Harmonic Balancer- OEM repl. All 351M 75/

Casting I.D. Nos- D5AE-A/D5AE-AA/AB
Service PN- D5AZ-6316-A W/O A/C

Casting I.D. No- D5AE-CA
Service PN- D5AZ 6316-B A/C

Light Truck and BRONCO applications will most likely have a T as the third character in the Casting I.D. Prefix XXTX-XX

The above info will give you an idea of how complicated the subject can get-