Packing nut size R21 EC

[r67boxer]

I'm not comfortable with using spanners or an adjustable wrench to loosen/tighten the prop shaft packing nut and lock nut. My preference is to buy an open ended wrench. My shaft is 1" and the nut appears to be 1 3/4" but could be 1 7/8". My caliper has repeatedly given me both numbers. Does anyone know which is correct?

 

[bob daily]

This is what I use

 

[ohioan55]

I'm not comfortable with using spanners or an adjustable wrench to loosen/tighten the prop shaft packing nut and lock nut. My preference is to buy an open ended wrench. My shaft is 1" and the nut appears to be 1 3/4" but could be 1 7/8". My caliper has repeatedly given me both numbers. Does anyone know which is correct?

Our 2015 was 1 7/8". I found that standard wrenches were difficult to use in the confined space. I found this short handled one on Amazon, which worked perfect.

 

[r67boxer]

Thanks to both of you. I would agree that typical spanners or a pipe wrench are not ideal for working in this confined area. I'll check both out.

 

[r67boxer]

As an update, I got one of the adjustable wrenches Bob suggested. It was only $18 from Home Depot. The open end wrench was about 2 or 3 weeks away with shipping.