Well it's taken me a while but I finally got the rear end out of my 77 GMC. I want to swap rear ends. There seems to be a few differences. One in particular is the spring mounts. On the 49, the axle mounts above the springs, while the axle for the 77 is mounted underneath the springs. How do I get around this? I want to leave the original springs in the 49. Or do I have to change them? If anyones knows where there is info on this, or any help would be greatly appreciated. Thanks.

kskt4