741 v 742 v 489 housings

................good score........except u cant use A body 8.75 backing plates with B body housing and axles.....they each hace specific offsets.....the pumpkins all interchange......my old duster has a 741 case with 4.10s in it for the lsat 30 years ...runs 11.001 with a 1.34 60 ft...on 12.2x31.25 slicks......kim.........