Are waggy front D44 axle shafts interchangeable from a driver side drop to a passenger side drop?
Thank in advance.
-Jeremy

No, they're not interchangeable. Bookmark this page:
http://www.warn.com/InternetHome/products/Axles/Appcharts/HighStrengthAlloy.shtm

According to that Warn chart, the 85 -90 Grand Waggy with driver side drop doesnt even exist.
Yes the mid to late 80s waggys with driver side drop are the same as the 80-84 Grandd Waggys with passenger side drop, only flipped. I use junkyard early 80s waggys, with passenger side drop axles for my spares, on my 87 waggy axle all the time.
The long side is just over 32", and the short side is just under 16".