Help Identifying these parts on a Gas Tank

[FiNorman]

I'm down to a bare frame and have a 20 gallon gas tank, and am getting ready to replace the fuel and vent hoses. While taking off the parts to clean the tank I broke off the nozzle on the little white plastic piece, which I believe is a vent or check valve.
Can someone definitively Identify these two white plastic pieces and the 2 rubber hoses that come off them and where do they connect to?

 

[FiNorman]

I found something very similar on ebay but for a yj... does anyone know if this will work? http://http://www.ebay.com/itm/Jeep-Wrangler-etc-Fuel-Tank-Roll-Over-Valve-Package-OEM-/151035144463?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3AJeep%7CModel%3AWrangler&hash=item232a65690f&vxp=mtr

 

[JR74CJ5]

thats a weird looking tank... is it a poly tank?

Perhaps those are the tubes that would go to the check valve / roll over valve from normal steel tank.

Not positive though!

 

[Petescj]

Im pretty sure the rollover valve is Cj specific cause I see request for it alot. Bear with me for a little and I'll try and find a more definitive answer.

I found something very similar on ebay but for a yj... does anyone know if this will work? http://http://www.ebay.com/itm/Jeep-Wrangler-etc-Fuel-Tank-Roll-Over-Valve-Package-OEM-/151035144463?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3AJeep%7CModel%3AWrangler&hash=item232a65690f&vxp=mtr

 

[FiNorman]

Im pretty sure the rollover valve is Cj specific cause I see request for it alot. Bear with me for a little and I'll try and find a more definitive answer.

Thanks... it is a poly tank... I think it was OE option for a 20 gallon tank. I did see some other forums where they said it was similar to the wrangler, I just wanted to confirm.....
thanks again.

 

[FiNorman]

Any thoughts? I might try to roll the dice and see if the wrangler ones work.