1964 Chevy 3:55 Posi Center Section (date code 2/12/64).
Fits 1955 thru 1964 Differential.
Been in storage fourty years, took apart this January, cleaned up, and checked out.
Excellent condition.
$950.
STEWART'S PERFORMANCE ENGINEERING
1040 OLD MARION ROAD NE
CEDAR RAPIDS, IA 52402