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Would like to change transmission oil in 1987 F150 light duty 4 speed manual transmission. No drain plug. Want to drill and tap for plug. Is the round boss on the bottom the correct place to drill?
Ludis, I understand your dismay! But there is no plug, it is not that uncommon on a light duty gear box. I was hoping that some one out there had one apart and could tell me what was inside above the round boss on the bottom that looks like it should have a plug in it. As things stand now I will go in the top and pump the oil out, this will not get all the droppings out of the bottom but it will get fresh oil to the gears. Please do not tell me to use a magnet to get the filings out of the bottom, there is just no room to get a rod down the side. I have had MoPars and Toys appart and have a good idea what is in there. Paul
I can't help you about where to drill, but I know the delimma you are in. I must have the same tranny, because I had to borrow a suction pump and pump it out from either the fill hole or the shifter hole, I can't remember which. Is your transmission an overdrive 4th gear?
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