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Manual 4 speed Muncie. How to remove the 3 shifter seals? They are 1 inch in diameter. I have found the puller for the automatic but it's to small. I hoped not to have to pull the side panel off.
Side cover comes off. The shafts come out. Pop out old seals and clean it up. The new seals are coated with sealer and tapped into place. Shift shafts are fitted to cover and cover is reinstalled, aligning the forks to the sliders. Might want to put transmission in gear to make it easier to line up the forks with the synchronizer sliders.
If you are rather motivated......you have to pull the tailhousing off....drive the pin out the right way (ONLY ONE WAY IS RIGHT)... replace the shaft seal same as before.....be 100% sure the reverse gear is attached to the reverse shift shaft fork right before buttoning it up or you will be opening it back up again.
Followed this and replaced all 3 shifter seals including the reverse one. Plus the yoke big seal too. Pretty straightforward if you follow the directions.
This is a cool little tool I've used in the past. Never tried it on shifter shaft seals though. You jam the hook past the rubber lip, twist and pull the seal out. Once you've gone this far though, your committed because you pretty much damaged the seal at this point. Might be worth a try.
I've been looking at that tool. The seals are so small, the space between the shaft and the seal is so tight I'm not sure the end would fit. Maybe the end could be ground down a bit.
I've been looking at that tool. The seals are so small, the space between the shaft and the seal is so tight I'm not sure the end would fit. Maybe the end could be ground down a bit.
Here's the actual size of the hook for reference if it helps. And yes, I believe you could grind it to fit your needs.
I purchased that tool. I even ground down the end, thinner and narrower, it didn't work. There isn't enough space between the seal and the shaft. I used a pointed pick and had to force it into the narrow slot to get the seal out. Tapping the seal in is the hard part while it's on the car. I got the forward seal in but I think I am going to remove the cover to do the other one. Not sure I would trust the seal seating properly installing it while it's on the car.
OP.
If you wanted to get creative, get some PVC, copper, or steel tubing the same OD as the seal, and an ID that will clear the shifter shaft.
Cut a length of tube about 1/2" or so long, set the seal in position, place the tube on it and then a washer and nut on the shift shaft and tighten the nut. It will push the seal into the bore.
You will probably need to make a couple different lengths to get the seal fully seated in the bore.
Be careful that the seal doesn't ****, and don't play Peter Armstrong on the nut.
Also, be sure to lubricate the seal itself, and rub a little on the shaft.
That is how I replaced mine when I first bought my 74.
I found a section of the steering column that I had to cut off to shorten it. 3/8 inch +or- some washers should work. It's short enough maybe tapping on it might also work.
Shifter shaft seal replacement.
