Got it Don. Wow, what a great idea. And that thing looks bulletproof too. What about interference with the Primary Chain tensioner or the Hayden Auto Chain Tensioner, any issue you see? Hoist!
Can't speak to bulletproof. But one can certainly hope!
I used this because I was upping the motor a bit, but not a ton. I specifically was not doing enough to make me think I HAD to do the Timken conversion. But I could do this piece and know I was adding a significant degree of insurance; and not have to split the cases to do it.
As to the tensioners; the early iterations of this part did not account for the Harley branded chain tensioner. It wasn't a big deal as you could account for it by relieving a small amount of material from the unit in an area that harmed nothing by doing so. The current version of the part is machined such that it accounts for the tensioner without having to do anything.
Whey I asked them about it they didn't/wouldn't claim experience with the Hayden or other third party tensioners. But the unit does specifically fit around the Harley branded unit now.
When ordering mine I was assuming that it was another of those pieces we do whose price is significantly accounted for by what it does or that we'll pay for it every bit as much as what it is. When you get this in hand, however, it is an impressive part. Anyone who has ever spent any time with machine tools will be immediately impressed. It is a beautifully made set of components that goes together like music. Really really sweet.