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Home » Public Forums » GMCnet » TH425 Filter Change (Noted Differences In TH425 Transmission Filters)
TH425 Filter Change [message #353273] Sun, 29 March 2020 14:42 Go to previous message
JBO is currently offline  JBO   Canada
Messages: 65
Registered: August 2012
Location: South Western Ontario
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Good Afternoon GMCneters,

Question for those that are familiar with the TH425 filter.

I went to swap mine out yesterday and had difficulties installing the new filter. I could not get it to secure in the mounting hole, even with two o-rings on it. It was just flopping around.

I noticed the older filter has a longer mounting stem of 3/4" while the new filter is 5/8".

You can see the difference in this picture, existing on left, new on right.

I'm not sure if this is the reason it's not fully engaging, perhaps the taper is slightly off on the new on and it cannot slip into place.

I didn't want to force the new filter in place. The old filter pushes in and out of the mounting hole effortlessly and is quite secure and snug when in place.



http://www.gmcmhphotos.com/photos/data/500/medium/TH425_filter_


Thoughts?

Jim Owens, 78 Royale, Out skirts of Kitchener, Ontario

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