3969277nf is the casting number of a 10 bolt.DWJ70 said:This is the code stamped on the rear end cga 04 1b2, Is this the code that i need to find out what gears are in this thing. The other code stamped on it is 3969277nf. Thanks.
CGA = 2.56 ratio non-posi
04 1 is an assembly date code, but should be 4 digits in 1970
04 = April
_1 = day of month
B = Buffalo assembly plant, 2 = shift?
This is a 1970 Chevelle 10 bolt with 2.56 gears. There should be a casting date on the rear of the center section on one of the axle tube webs.