4020 loader ported cover which one ?

I am plumbing my 67 4020 powershift tractor so I dont have to use the remotes in the back for my 158 loader, I got the ported cover t31170 , my question is on the powershift is it the smaller front cover I replace on my tractor or the larger rear one ? I'm hopeing it's the larger rear one because the rear cover and the ported cover I got are the exact same size so the old bolt would work perfectly and no issues like on all the posts i read about bolt lengths. So basically I'm just asking can I return my loader fluid to the rear filter on my tractor ? Thanks
 
No need for a ported filter cover. I returned mine where JD did on the industrial models which is where the rockshaft return oil goes. Someone just showed that picture again the other day with the fittings labeled to show where the sump screen is.
 
The Power shift transmission pump runs constantly so it is keeping the front pump supplied well even when the tractor is stopped,,different from the sychro range where the trans. pump stops each time the clutch is depressed..
 

Nothing wrong with the ported cover. The Waterloo tractors have three different methods of returning the loader oil to a point between the transmission pump outlet and the hydraulic filter inlet.
 

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