8 3/4 rear question

It should bolt right in. Check the pinion yoke. There is
different sizes. I got 2 different centers for mine.
Got a 742 center with 4.30 gears for the strip and also
have a 741 center with 3.23s for the street. I got the green
bearings on the axles so I don't mess with the bearing adjustment
on the right axle. Got a slight loop in the brake lines so I
dont have to mess with bleeding the brakes.