Rear Axle Shock/Damper Leaking - Replace with OEM or King shock?

[GC34]

I’ll take any information you can give

King axle shock Shaft 7-1/4" and eye to eye 21-7/8"

 

[84 Sheepdog]

Just dug the stock one out, it's 22" eye to eye.

 

[Fifty]

Yes… and lagging