Talon Universal joint failure

[Graeme Smith]

This is what I am using ... flex couplings, no grease, fully visible, supported at each end.

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I am aligning the entire drive line with a laser that I have centralised in the gearbox part that locates in the boom cone, that laser then allows me to adjust each bulkhead plate to be square to the line and then the flex coupling centrality aligned with the laser as well, the photo shows the spacer with a small hole in it with the laser showing red the bearing plate can be moved within the bulkhead plate to achieve alignment, then the attach 3/16" holes can be drilled. To align the bulkhead plate to the RW boom bulkheads I use a simple right-angle jig that uses the laser line to manage the squareness of the bulkhead to the alignment of the laser