[spidertri]

I bought just the pumpkin and installed it myself two years ago. It was a straightforward process and not a bad DIY. I reused my existing bearings at the time thinking that I might go to a different gear ratio in the future but that hasn't happened yet.

For the wavetrac you're considering, it does have clutches inside, they are just smaller than normal and provide some lockup in certain situations. Do some reading on those, I've seen comments and threads from some of the faster track guys saying the clutches don't last very long.

I worked with Florian from limitedslip.de and he built my LSD to my specs, including the preload setting. Then he just shipped it over and I installed it. I can look and see if the backlash numbers were on the datasheet he sent.

You should definitely measure the backlash before you take it apart, always good to know where you're starting at.