Re: Differential ID

Posted by BDeB On 2015/5/8 18:53:25

443645 is the raw casting number for the carrier and cap assembly. The part number for the finished piece is often one digit different than the casting number.

Under Group 12.0015 in the 1951-54 parts list the number 443646 appears for all of the 1953 26th Series models so your differential is most likely from 1953.

The 90251x numbers are for a complete carrier assembly that includes all of the gears and is ready for installation. This number will not appear anywhere on the differential.