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T-REX 550 › DFC mod 1 main gear on v2 heli
09-21-2013 11:33 PM  5 years agoPost 1
Scott1115

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Greenwich, CT

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I am looking for a mod 1 gear for the 550. I have a v2 550E.

The one I see online has a 6 bolt pattern designed for the DFC version. Mine has a 5 bolt pattern. Do I have any options? I do not mind buying the hub too.

Will the DFC main hub fit the v2? Beside the DFC main hub and the new main gear, would I need anything else? The mod .8 gear are lousy.

Compass 7HV, Trex 550E
RCRCC

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09-22-2013 01:42 AM  5 years agoPost 2
Funky Trex

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Westerville, OH - USA

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My v2 and DFC both came with the 6 bolt main gears (slant cut). My older v1 550 and 600n have 5 bolts and straight cut gears. The 2 hubs are not interchangeable... athough there might be some aftermarket solutions using the older hub.

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09-22-2013 04:13 AM  5 years agoPost 3
Scott1115

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Greenwich, CT

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If I buy the new hub (6 bolts), will it fit the v2?

Compass 7HV, Trex 550E
RCRCC

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09-22-2013 04:21 AM  5 years agoPost 4
Funky Trex

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Westerville, OH - USA

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It should. My 550v2 came with the newer 6 bolt maingear hub. The slant gear is a lot thicker than the old straight gears so I had to use one of the mainshaft washers in between the top of the main gear hub and bottom of the upper bearing. I ran it for a while with the shim on top of the upper bearing but the main gear was rubbing the bottom of my front servos pretty bad so I had to move the shim to give the servos clearance.

I have 2 550s and have had both hubs with both main gears in a v1 and a v2 550. The gear with hub assemblies are interchangeable but not the individual parts... if that makes sense

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