Well... for starters... everyone is assuming that the adhesive used in the driveshafts is Lord 406.... FACT is... no body can/will say for sure at this point.
IF... IF... the adhesive on the shaft from the factory is not damaged at 400 degrees AND IF you you can fixture the shaft between centers AND the adhesive used is 406... then you could probably pull it off...
But then again.. who has all that stuff... as Paul said... It would be a "one shot" deal... you're not getting it off for all intents and purposes.
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