Top transmission gear replacement. Aftermarket non-plastic option.
 

Hi all,
On round 2 of replacing broken top transmission plastic gears. For the price of rolling the dice on a used unit off eBay, I could also replace with brass gears that I stumbled across. This seems way more reliable and not something I’d have to touch again most likely.

What’s the consensus on brass/steel aftermarket gears?

Here’s one I found on eBay: http://rover.ebay.com/ar/1/711-53200...26media%3DCOPYhttps://www.ebay.com/itm/284765158336?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Jr-yh-w1QEm&sssrc=4429486&ssuid=Y6MlC0EuS96&var=&widget_ ver=artemis&media=COPY

(No affiliation) also happy to support a sponsor vendor or take recommendations on alternatives as well.

Found this set of steel ones for the price of just 1 above. Anyone used these before? https://www.ebay.com/itm/363889557782?_trkparms=amclksrc%3DITM%26aid%3D1110 006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D25314 4%26meid%3D8095e47f6ead462cab019c459b91a742%26pid% 3D101196%26rk%3D1%26rkt%3D12%26sd%3D284765158336%2 6itm%3D363889557782%26pmt%3D1%26noa%3D0%26pg%3D204 7675%26algv%3DSimplAMLv9PairwiseWithPLXWebFitmentF ilterConfirmFitSignalV2&_trksid=p2047675.c101196.m 2219&amdata=cksum%3A3638895577828095e47f6ead462cab 019c459b91a742%7Cenc%3AAQAIAAABEPYpaD8nYPH81DuZHNS X7lkZ7%252Fj5mtRzXG6BtgnQ878e7BDosKQZZxEbE6miQX5LM oNqGWl4um1MkbSEJd3Z3wS0Bm%252FaF22%252FFZs7ddrJr4v n1STd8iOpulT%252FpUEKHCkT010K%252BtrW8ADyNiwsFyZXk Wnn%252BnwBfA32%252FS%252BzfZE3RkChHroRC7ec7Yg6Rot 8G6aPNT1FquJwzaP8w7yFRF1%252BsXrKYS7UKJT7JDeTK%252 FOw49VrXYM1bFdDJpcWCfD116x%252Bcmkx5JZZgbVoqogevH5 0MPn2ZYV3%252FiSRq0r7pa4RMUSG%252BGkggGwSZzI2%252B jHAHXdPofbehjDgWsaReDQCJn9Vkobm91vJtI%252Bk0WRP7jW NNaNa%7Campid%3APL_CLK%7Cclp%3A2047675

Ever wonder why Porsche chose to use Delrin gears instead of metal?

Yes I have lol! Posted this for that exact reason. I’m assuming by your response JFP and lack of replies that consensus is “bad idea”?

What’s interesting to me though, is that every other gear in the mechanism is metal. So why is that ONE gear plastic? Genuinely curious.

It is the planned failure point the gives out before the top motor ends up bending up other components, like the clamshell, when something gets bound up or jams.

As an engineer, you will always want to design in a sacrificial element as a safeguard. Something that will protect the integrity of the design if a failure occurs...and it always does. These gears serve that purpose. DO NOT go with metal gears.