[Mart]

When the shaft comes back from the shop, mount the axle with the pinion sticking straight up, and put the shaft on the pinion so it is vertical. You can check the runout at the front end of the shaft by rotating it. You need to use judgement, and take into account any play between the coupler and the pinion splines. The shaft can be bought into line by running welds on the opposite side to the runout at the bottom near the coupler.

I did this on my roadster and it worked really well. I checked the torque tube in a similar way, and was able to correct some considerable misalignment in the squareness of the flange by pulling it with welds.

I did a write up on one of the forums, if anyone is interested I could post a link (If I can find it).

Mart.