Rear-end oil fill

[DBrer]

This is an elementary question, please don't laugh. How do you guys fill the rear-end with gear oil? The fill plug points a little down and I tried a flexible funnel,
but trying to get it to flow down hill is difficult where it goes into the fill hole. Maybe a rose gun would work?

[redmodelt]

I have used 2 pieces of short 1/2" pipe and elbow with funnel to add lube. The plug hole is 1/2 pipe thread.

[Gary WA]

old style pump oil can with long flexible end.

[Tom Endy]

The 600W I use comes from Bratton's in a squeeze bottle. I put my finger over the end and guide it into the hole and then squeeze the bottle. It is a fill to spill operation.

Tom Endy

[Patrick L.]

A suction gun or rubber hose over squeeze bottle nipple works. Many different ways to milk this cow.

[Jacksonlll]

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Like Tom said: Fill until it runs out. Fill to spill.

[JBill]

Tom's way is the easiest. But if your heavy differential (or trans) oil didn't come in a squeezable bottle, you can buy one at Menard's, Home Depot, etc. Fill the bottle with a funnel and you're in business.

[johnbuckley]

I use a modified hand-pumped pressurised garden weedkiller spray bottle.

[rotorwrench]

I use a lubricant suction gun similar to this link.
https://www.speedwaymotors.com/Perfo...-Gun,2715.html

[DBrer]

Thank you for the response. What you guys are doing makes sense.

[Fred K OR]

Originally Posted by Tom Endy

The 600W I use comes from Bratton's in a squeeze bottle. I put my finger over the end and guide it into the hole and then squeeze the bottle. It is a fill to spill operation.

Tom Endy

I do the same-buy the stuff in the squeeze bottle. Or get a squeeze bottle and use it. This method works great for both the rear end and getting to the tranny hole.

[Kurt in NJ]

I cut a tin can and folded it into a crude funnel ----it's what i had at the moment

[bkensinger]

If you use the substitutes for 600w it helps if you warm it up to make it flow out of the bottle better. You can also use one of those cheap oil pumps at Walmart to pump outboard motor gear case oil. It just takes a lot of pumps to fill that old gear case. It won't hurt to add a little Lucas in there too.

[DBrer]

I leave my 600w oil in the garage until I think I will need some, then I bring some in the house and use hot water in the sink and let it soak. That seems to work okay.