71-74 8.75 b body rear

Duster708 said

but i have the later b rear end flange to flange is 57.8" perch to perch is 47.3" so u have to move the perches more than an inch.. i also want to put the willwood rear disc kit on it, and moser axles but that will change the offset, and idk if it will stick out too far then

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I read it right, look at what you posted for flange to flange. 57.8 that is why I asked you where you got the 47.3 from.

At 57.8 it would fit in your car just fine. According to daredevil your rear should measure 62.0 which would be too wide.

The rear you have is more than a couple inches wider, it is 6.5 inches wider than an A body rear.