Join Date: Feb 2009
Location: Northeastern BC
A few years ago I had a 4-wheel alignment done on my B4000 4x4, and the shop had to use a come-along to pull the rear axle into alignment, so I assume it was off by quite a bit (not quite square to the driveshaft, I think). I didn't notice any problem before that. I only had the alignment done because I did a torsion bar "lift" on the front.
I can see how there might be quite a bit of wiggle room on the rear axles, just from the way they are built. Really the only thing holding the axle in line are the leaf springs, and I'm sure the shackles, etc. have quite a bit of play. The axles themselves have considerable end-play right to the differential.
Personally, I wouldn't worry about it unless you're getting uneven tire wear or it's driving funny. It's a truck, not a Porsche 959, so pretty loose tolerances I'd guess.
If Princess Auto were a real girl, I'd ask her to marry me.