Is this oil O.K. to use in the rear end on a Recon?The manual calls for 80w.Thanks

 

It is best to use an oil that says hypo on the lable. The shaft drive is suppose to use this special type oil.

 

The 80-90w I have says "hypoid" on the bottle.Does this mean it is ok then?

 

yup
Thats ok to use just make sure its fresh and clean.
I find that just after you replace the oil and come back from a ride it needs to be topped up again. Theres no leaks or nothing but the oil just has to settle back down a bit.