I will see if I can find out how much it was planed but
scavenging his quotes from above, he said:

'initially installing it without alignment rings'

Then:

Seems to be warped as when I tried to use the alignment cups, everything was out of whack except the rear two connections...and it shooting smoke out of 4/6 ports.

and:

I ordered the rings and reinstalled...Also my initial assumption was a crack and after reconnection and an attempt at realignment, I found that the vehicle would hold idle and there was a warping issue


55.1 Chevy 3604 NAPCO 4x4 (235)
56 GMC 101 Deluxe NAPCO 4x4 (270)