No matter how good the tools are, crawling under the truck to remove 8 bolts in tight places will never be quicker than undoing 5 fully accessible bolts holding the half shaft in. Especially with power tools! As far as I understand, the rear half shaft isn’t integral to any suspension components (like a CV with a nut on the end would be), and the diff wouldn’t have any load on it. I think I’ll risk it and give it a go. If it goes right or wrong I’ll let you all know!