Leaf Spring installation

Get A-body springs. If not, you're looking at getting a different driveshaft and possibly not enough E-brake cable adjustment.
I bought new A-body leaf springs .When I bought it had MOPAR leaf springs off of something that set the axle back at 22" the new leaf springs set the axle at the correct of 20" like I have the right side off all the new parts are on the new leaf .L have reinstalled the front hanger.My problem is I cant put the U-bolt on because of the 2" difference should I go ahead and take the driver side apart so I can get the axle on the passenger side I believe I can solve the drive line and e-brake Thanks for any and all help as to what to do THANKS BILLY