Tricky subject the 'old A-Bod' 8 3/4.
Even if you find an original A-bod 8 3/4 it has the 4 inch pcd axle shafts.
The narrowest 4 1/2 pcd axle shaft is still too wide for an A-bod unless its a Duster.
You can use a 66-67 B-Bod axle complete in a Duster as it fits real nice.
All pre 70 A-bods need a complete axle revamp to get the 4 1/2 pcd shafts...
By the time you do all the work its gonna get expensive indeed!
Just try and find a done one methinks.
If you was in the UK I could have helped you out with this.
Best wishes from Limey John
