Help with Detroit TrueTrac issue

[tenscourts]

I have a 2016 Silverado 1500 Z71 CCSB with a 4 inch BDS lift. It's in the shop right now for regular maintenance (100k diff, transfer case, trans fluids, plugs, wires etc.) While the cover was off I had them replace the G80 with a Detroit TrueTrac. During the test drive they noticed a clicking noise when coasting. It appears there is some play around the C clip on the driver's side allowing it to rub against the carrier. The current hypothesis is the part was machined incorrectly allowing the play. A replacement is expected Monday. I'm concerned we'll see the same issue with the replacement. Does anyone have any feedback?

 

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[tenscourts]

Anybody?

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[tenscourts]

For anyone who may come across this post later the replacement diff resolved the play around the C clip on the driver side. There is still a cyclical noise when coasting at lower speeds that's about one "click" per revolution of the tire. As soon as you give it any throttle the noise goes away. I'm not sure if it's a lapping or break-in issue or normal operation for this application. I've read many posts in different places complaining of the same issue and many saying theirs were silent although I can't find anyone who's made this swap in a 2014-2018 model truck for direct comparison. I'll update further when I have more information.

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[tenscourts]

So the continued clicking appears to have come from one of my rear brake rotors clipping the caliper. The best we can tell the spacers between the rotor and caliper have compressed allowing a high spot in the edge of the rotor to contact the caliper. The spacers were replaced and the knocking noise appears to have stopped. I will continue to monitor the situation.

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[cstmg8]

Thanks for the info. Have you noticed any improvement from the truetrac?

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[tenscourts]

I've done a couple launches on dry pavement. One hooked up immediately with no wheel spin and the other appeared to spin both wheels immediately until they hooked up but that was brand new slick asphalt. I didn't need the TrueTrac but I liked the idea of not having anything that would truly lock and potentially break.

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[cstmg8]

I've done a couple launches on dry pavement. One hooked up immediately with no wheel spin and the other appeared to spin both wheels immediately until they hooked up but that was brand new slick asphalt. I didn't need the TrueTrac but I liked the idea of not having anything that would truly lock and potentially break.

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Do you have any engine mods? I need it with the blower, lol.

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[tenscourts]

Black Bear Tune and Airaid intake tube is all. If I ever get the money I'd like a supercharger.

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