My car has the tangerine bushing installed and while it does have a groove for the rubber boot in my case (may be related to the shift rod??) the boot just would not stay on when going into R,2, or 4. I measured the O.D. and found it conveniently to be 2.25" and ordered this 2.25 to 2.5"I.D. exhaust adapter:
A little chopping, belt sanding and then some hammer work on a simple buck yielded this:
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Installed (slip fit but may do use some sealant to keep water out:)
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In action:
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Just thowing this out there in case others have the same problem- which I admit is unlikely but anyway....
Best!
Pete