55.2-59 GM 10 Bolt Not Centered

[SARBlade]

Hi All,

Just putting my welder series triangulated 4 link in my 56 Chev and noticed that with the axle centered, the pinion is 5/8" right of center. The drive shaft is not centered. I thought I messed things up, but measured the TH350 and its offset to the passenger side. So I guess this is normal eh? I ran into this when I was about to install the upper bars to a cross member I made and the bars met in the middle of the member, but looking down, the axle could come up and hit the right upper bar! Any thoughts on this?

A few pictures


You can see the two center marks, one is driveshaft/pinion, the other between frame bars



Here you can see the 2x3 cross member has the driveshaft cutout, now the upper bar mounts fall in the wrong place. I'll just have to change the mounting angle now. They are currently at 29º. I guess I'll go to 27º