Google lens says this when analyzing the photo of the back
+3
It is difficult to definitively identify the exact model of the rear end from the image alone, as specific casting numbers or bolt counts are needed. Based on general characteristics, this appears to be an integral carrier type...
Barely used. Comes with carb stud kit installed on the intake, assume the stock calibration for electric choke on the carb.
$250obo each + shipping or I'll do $450 + shipping for the pair.