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Bob Bidonde · 12-05-2021, 09:57 AM

Where exactly is the requirement specified for the A-22371 5/8 Plain Washer to be hardened? I find that the A-21892 5/8-18 Castle Nut is specified as hardened, but not the A-22371 Washer.

By the way, I find from experience that the threads on the rear axle shafts are relatively ductile in comparison to the nut. It makes sense for the nut to be hardened because it determines the strength of the brake drum retention.

12-05-2021, 09:57 AM	#7
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,472	Re: Rear axle nut Where exactly is the requirement specified for the A-22371 5/8 Plain Washer to be hardened? I find that the A-21892 5/8-18 Castle Nut is specified as hardened, but not the A-22371 Washer. By the way, I find from experience that the threads on the rear axle shafts are relatively ductile in comparison to the nut. It makes sense for the nut to be hardened because it determines the strength of the brake drum retention. __________________ Bob Bidonde Last edited by Bob Bidonde; 12-05-2021 at 10:46 AM.