Originally Posted by CSK
I run mine 1 deg down from parallel to the trans, work great


The reason I run mine only 1deg down from trans is it works great SO FAR at launch, BUT if I go down more on the pinion I get a driveline vibration at a light cruise 70mph & up,, Street car problems LOL , I have OD trans & a 4.10 gear with a short driveshaft its very sensitive to the angles, smooth as glass the way I have it now that I have a Mark Williams driveshaft

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5