RCCrawler Forums

TedBull · 07-14-2011, 06:19 PM

I have 65:1 superbully axles and I am running single 7980's behind the axle using Svens's mounts. Anyone know how small I can go on the motor pinions before the motor hits the servo case? I have 35T Brood HHK motors and have a 15 in the front and 14 on the rear. It's geared to tall and I want to drop down as far as I can.

JeremyH · 07-15-2011, 07:54 AM

I run a similar setup (Brood Big Wires, but I believe the cans are the same) and can easily fit the 12T pinions in and still have plenty of clearance. That extra gear in the 65:1 box really spaces the motor away from the tubes and give plenty of clearance for that servo.

Almighty Malach · 07-15-2011, 08:26 AM

I have Holmes 40t motors and stock 12t pinions, and I had to shave about 2mm off the axle tube to fit the servo 86jeep-style. Make sure you space the servo at least 1/2" to 5/8" up from the tube, or you'll be dragging the bottom of the servo everywhere

TedBull · 07-16-2011, 09:30 AM

Thanks for the reply's. Diamond D is going to let me try some 12T pinions.

07-14-2011, 06:19 PM	#1
TedBull Rock Crawler Join Date: Oct 2010 Location: NW Washington Posts: 550	65:1 bully motor pinion size and servo clearance. I have 65:1 superbully axles and I am running single 7980's behind the axle using Svens's mounts. Anyone know how small I can go on the motor pinions before the motor hits the servo case? I have 35T Brood HHK motors and have a 15 in the front and 14 on the rear. It's geared to tall and I want to drop down as far as I can.

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07-15-2011, 07:54 AM	#2
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	I run a similar setup (Brood Big Wires, but I believe the cans are the same) and can easily fit the 12T pinions in and still have plenty of clearance. That extra gear in the 65:1 box really spaces the motor away from the tubes and give plenty of clearance for that servo.

07-15-2011, 08:26 AM	#3
Almighty Malach RCC Addict Join Date: Feb 2008 Location: Crawlerado Posts: 1,411	I have Holmes 40t motors and stock 12t pinions, and I had to shave about 2mm off the axle tube to fit the servo 86jeep-style. Make sure you space the servo at least 1/2" to 5/8" up from the tube, or you'll be dragging the bottom of the servo everywhere

07-16-2011, 09:30 AM	#4
TedBull Rock Crawler Join Date: Oct 2010 Location: NW Washington Posts: 550	Thanks for the reply's. Diamond D is going to let me try some 12T pinions.

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Thread: 65:1 bully motor pinion size and servo clearance.