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Old 07-22-2013, 02:30 PM   #1
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Default Looking for Aluminum Drive and Ring Gears for NTC3

Does anyone know if there is anyone in the country making aluminum drive and ring gears for the Associated NTC3? I can run my small motor ([url]http://www.youtube.com/watch?v=cHfw9nmX7ig) run after run, but as soon as I put my 18TZ on the plastic gears strip on the first hit. Any ideas or suggestions.

Here's another video: http://www.youtube.com/watch?v=7Q9kCzvr270
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Old 07-23-2013, 04:23 PM   #2
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ofna ld3 gears
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Old 07-23-2013, 11:47 PM   #3
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Thanks!!

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ofna ld3 gears
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Old 07-24-2013, 12:43 AM   #4
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You need to shim your bevel gears properly, and you'll be fine...
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Old 07-24-2013, 05:31 PM   #5
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Are you speaking in regards to the plastic gears or the metal gears on the way? The plastic gears were always properly shimmed (been using the same mesh technique for more that 30 years), but don't seem to be able to stand up to my self modified (all my engines are) 18TZ.

The car doesn't have diffs (direct drive) and the initial hit on a prepped drag surface is too much for the plastic gears. Thanks for the advice.

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You need to shim your bevel gears properly, and you'll be fine...
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Old 07-24-2013, 07:16 PM   #6
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Well now I understand.... Drag Racing is too much for these plastics... You'll need steel only, and you'll have to make them yourself...
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Old 07-24-2013, 07:21 PM   #7
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The best I can suggest is to find a steel ring gear that can fit first, and then either make the pinion or try the plastic pinion. The ring gears always seem to break first...
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Old 07-24-2013, 07:34 PM   #8
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After a brief search, I found that the ofna ld3 steel gears are the way to go: ring gear 40t (part# 38257), and pinion gear 16t (part# 38258).... They are both available at ofna warehouse for cheap, but I think you'll need some dremeling to make them fit........
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Old 07-24-2013, 08:22 PM   #9
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The ld3 ring gear can only be used with the ntc3 spool....
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Old 07-25-2013, 12:31 PM   #10
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Thanks for the advice and assistance. I ordered the ld3 gears. I'm sure it will be a slight challenge but I'm looking forward to it.

Thanks,

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The ld3 ring gear can only be used with the ntc3 spool....
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Old 07-26-2013, 04:11 PM   #11
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No problem...
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