Re: BX axle code?
 

Here are the pics from the 69 L78 Nova rear, The trim tag was 04C, cast date on the center section of the rear was 04119 and assembly date on the BW rear was 0418. Would have to be an incredible coincidence for all those dates to be within the time frame. Original 272 engine block had a cast date of D 8 9 and assembly date/stamp of T0411JH https://www.yenko.net/ubbthreads/pics...rear_stamp.jpg
https://www.yenko.net/ubbthreads/pics...va_stamp_2.jpg
https://www.yenko.net/ubbthreads/pics...va_stamp_3.jpg
https://www.yenko.net/ubbthreads/pics...va_stamp_4.jpg

Re: BX axle code?
 

As noted in past threads, for 1969 only it took Copo 9511 to get 4:56 & 4:88 factory rear w/ any '69 Chevrolet.
Other years and dealer installs are different things but it sure looks like Sulley's '69 was a real L78 Copo Nova!
[img]<<GRAEMLIN_URL>>/beers.gif[/img]
~ Pete

Re: BX axle code?
 

Sold out of a little dealership in Colo Springs. Wish the rear still had all the original guts in it, that would have helped the cause further. Never know if the guy stamping rear tubes that day threw a &quot;w&quot; in the stamping gang holder instead of a T or U.?