Re: 54-56 Ultramatic Parking Gears

Posted by BH On 2024/1/27 18:26:41

Casting numbers are not necessarily the same as a finished good whether for production or service.

You would need to compare casting numbers between the different parts. Then, different part number could be assigned due to a different grind or finish.

Member PackardV8 and I had a discussion about this, several years ago, WRT to the cast interior door top trim piece. The part on his Exec hardttop was painted, while the same part on my Caribbean H/T was chrome-plated. Yet, both had the same casting number.