What do these do?

[gimpyrobb]

I got a box of parts with about 10 of these sealed NOS. I have a 5ton, what are they for?

http://www.odiron.com/store/advanced_search_result.php?keywords=7409553

 

[papercu]

parts

They are used on the 900 series and found in TM-9-2320-272-24P-1 Truck 5-Ton 6x6 M939 M939A1 M939A2 Series Trucks (Diesel) Manual (goes on the rear wheels assy.)I don't know if they fit other trucks. Wayne

 

[Offroadfabworks]

Gimp they go on the axle housing it self, and the inner hub seal spins on them. Keep them for if you ever have to replace the seal on your hubs of your truck. Will work on all your 5 ton axles.