69 B body 8 3/4 in a 68 A body with 15x7s?

bigblock68 said
read this article it tells everything u need to do.http://www.moparmusclemagazine.com/...404_8_3_4_rear_axle_housing_swap/viewall.html

That article is full of bad numbers.

68 B body rear is 3" longer in total than an A body. 60 1/8 vs 57 1/8.

To put wheels in the same spots, they need 1.5-1.75" more backspace on each side. They can actual have more backspace change.