Lakewood adapter ring?

After sorting through my stuff getting ready for my V8, 4 speed swap..... trouble. I see that my Lakewood is for the larger bearing retainer 4 speeds. I see that Brewers makes an adapter ring. Has anybody used this? Is it a weld in item? Curious if anybody has used one.
This is what it looks like on mine. Make sure your washers dont extend past the outside of the spacer and dont be afraid to put a little thread sealer on the bolts.

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