Remember these are are 2WD trucks on the highway so front pinion angle isn't as important as a stock AWD truck.well on the picture it is wrong angle . I can tell by looking at U-join pitch . from front axle cardan goes state by looking at a u-join and to transfer case pitch is probably 30 degrees . http://67-72chevytrucks.com/vboard/attachment.php?attachmentid=901636&stc=1&d=1333383237