In the real world probably not. Since you are changing out the rear end to open driveshaft you can set the pinion angle before welding on spring perches. As long as there is not a unusual driveline angle all should be ok.
The rear end change to a Ferd is cause for the thread to be moved to the HiPo Forum.
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| 
