Unless the car is lowered a bunch or raised with hi jackers from the 70's lol this isn't rocket science, get the motor/trans angle and adjust the pinion down or up accordingly to what ever chassis u have to get it to parallel under power. I never worry about the driveshaft and what angle its at
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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74
2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial
2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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