Yes, my space is tight also, but I was able to squeeze in a Lasdrop drip less seal (they use a lip seal so are shorter.) Worked out well, you should consider it. BTW, since the gland is 1 3/4 OD, the hose
should be 1 3/4" ID, and the tube also 1 3/4" OD. That is unless you are going to fit the new 1.5" tube inside the old 1 3/4. You might also consider a new shaft while you're there.
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Phil Horn
S34 #67
Huntington, LI, NY
Philip Horn