I installed this.
Perfect fit no issues. 68 Firebird original rear end 8.2 BOP.
Local shop pressed on the bearing and don't forget to make sure the mounting plate is in the right spot first.

Brand: Yukon Gear
Part Number: YA G8.2BOP-L
Item Description: Axle Shaft
Driver Side

Fitment Notes: 8.2" 10 Bolt;28 Spline;29 7/8" Length;

My original on one side the bearing had spun and grooved out the axle.