I'm swapping out the open differential to a Posi Unit (https://www.jegs.com/i/JEGS/555/62820/10002/-1) for the the 8.75 in my 68 dart.

Does anyone have any tips?

Its a 3.91 gear if that matters and the front pinion seal needs replaced as well.

I checked the tech archives but didnt see a walk thru.

Thanks Guys!

33 Plymouth Roadster - 383 - 5.90 1/8th 9.58 1/4
68 Dart - 340
66 Belvedere - 400

Windy Hollow Garage - https://www.youtube.com/@windyhollowgarage