Didn't know that. Good to know.
Yes my 75 blazer is 454, 465, 203, fulltime dana 44 front, 12 bolt rear. Weird setup truck.
I actaully have a whole other 465 203 combo in my parts pile too
But my 205 i have, that i wanted to swap in, is already paired up with another 465 (lower mileage too) so...