Thank you all for your suggestions. I think I'm going to put this problem on the back burner for a couple of weeks until my neighbor gets home. He has an accurate 8' long straight edge that I will borrow to check the "level" of my garage floor and the slab of my carport. If either are acceptable I will use the procedures in the GMC Maintenance Manual to at least test some of the front end measurements.
In the mean time, I'll try to stop by Kenneth Crenwelge's house to get a better understanding of how one "bends" a front axle into spec. Not that I would try to bend mine myself. I just cannot envision how it is done from comments in the posts above.
Thanks,
Bill
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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