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Old 10-13-2009, 11:36 PM
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bushing driver- trans. pump bushing.

Im trying to replace my front trans bushing(700r4) and I cant seem to find a bushing driver...anyone ever made one? of so how did you do it....i tried a pipe the diameter of the bushing however it turned out a lil to thick...grined it down then it was to thin...kept catching the inside of the bushing...gave up on that tonight...tomorrow im thinking of finding several washers the right diameter stacking them on a heavy duty bolt and sandwich them between two nuts and tapping it out....any other ideas?? Thanks.


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Old 10-14-2009, 10:45 AM
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When I rebuilt my TH350, I had some of those problems as well, and handled 'em in a couple different ways:

When I was replacing the bushings in the pump housing, I didn't have anything the right size or length to get the center one taken care of, so I chucked up a piece of round aluminum bar in my wood lathe and turned it to size using some woodworking chisels. I kept checking the diameter with some micrometers until it fit. Didn't look pretty, but then again I only had to use it once.

When replacing the sun gear bushings, I used a bearing/seal driver to get the bushing into the bore, but didn't have one the right size to get the bushings beneath the chamfers. Luckily I found out that a Craftsman 22mm 1/2" drive socket was dead-nuts perfect in diameter so used that to push the bushings in the final 1/16" or so. At least I think it was 22mm - could've been 21 or 23, but it was around that size.

A couple washers stacked up could probably do it if they are the right diameter. If you find some that are *just* a bit too big, then you can always chuck it up in the drill press and re-size them by using some sandpaper or a file (warning: if using a file, make sure that you are using it so that the handle-end is away from you if you don't actually have a handle on it - it'll hurt if it catches. Use a slower speed as well). Just make sure that you crank down on the nuts to make sure the stack stays in position and doesn't loosen up.

- Mike
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Old 10-14-2009, 09:45 PM
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washers didnt work

The washer Idea didnt work, the washers were the perfect diameter of the inside of the bushing, I went into the conduate dept.at lowes came across a pipe coupler that had the thread on the inside, it was the exact diameter of the outside of the bushing, tapped the bushing a few times. it moved but the pipe started pressing itself into the housing, I removed it polished it with a wire wheel, tried it agian the bushing poped out after a couple of hits with a hammer to the wood block on top of the pipe. The pipe stayed pressed in the housing..I clamped it and tapped the housing with a rubber mallet and it came right out...I hope i didnt expand the housing. I tried the bare bushing over the TC shaft/rod and its not completly tight it has just the slightest amout of play almost nothing is that normal?
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