drive pin issue

[Mudman02]

just about every time I go out I break a drive pin. can anybody help. why am I breaking these so easily? I'll go ahead and say I'm running a 3300kv pro4 but there has to be a solution?

[Sevastra]

Sounds like something is binding up. Exactly which pins are breaking? The ones in the drive shafts going to the differentials, or the ones in the axle shafts for the wheel hubs?

[Mudman02]

Originally Posted by Sevastra

Sounds like something is binding up. Exactly which pins are breaking? The ones in the drive shafts going to the differentials, or the ones in the axle shafts for the wheel hubs?

it's the ones on the axle shafts going to Hex's.

[Sevastra]

Factory pins? And do they fit the axle & hub snugly, or are they loose?

[John_Fizel]

You might look into the VP clamping hex. It holds on the pin AND clamps to the axle. Pretty good setup.

John

[maslin]

I've been using the same hexs and pins going on two years. Stock pins the wraith came with and stock axial locking hexes.

What hexes, pins, axles etc are you running?

[Revoasian]

Is this just happening on one wheel, or all of them? If its just one, try moving that hex to a different wheel. If problem follows you got a bad hex, if it stays then you have other problems. If you do need new hex's I would order the DLUX fab cromo hex pins they are much stronger.

[Mudman02]

Originally Posted by maslin

I've been using the same hexs and pins going on two years. Stock pins the wraith came with and stock axial locking hexes.

What hexes, pins, axles etc are you running?

I'm using the vp clamping hexes and axial pins. it's happened on the two rear tires.

[Eric0424]

Originally Posted by Mudman02

I'm using the vp clamping hexes and axial pins. it's happened on the two rear tires.

Are you running under drive (43/13) gears in the rear axle and/or overdrive (36/14) gears in the front axle?

[Mudman02]

Originally Posted by Eric0424

Are you running under drive (43/13) gears in the rear axle and/or overdrive (36/14) gears in the front axle?

there the 38/13 hd gears. not under drive or overdrive. stock ratio

[o0wiz0o]

I'd say the hex or the pins are bad. There must be slop somewhere. Or are the through holes on the shafts damaged?

[Eric0424]

Originally Posted by o0wiz0o

I'd say the hex or the pins are bad. There must be slop somewhere. Or are the through holes on the shafts damaged?

That's what I'm thinking, there's got to be some movement somewhere. From sloppy pin fit in the axle and/or hex or the wheel nuts could be working loose. I've seen a weak wheel locknuts damage a lot of axles, hex adapters, wheels and pins when they get loose.

[maslin]

The hex has to loose on the axle. It takes a hammer and pliers to get the axial hex off. It's a pain, but I've never broken a pin.

Or the channel in the hex is different?

[CrawlCrest]

Cut down a drill bit that fits in the axle stub. I did that on my slash when I kept shearing the stock pins.

[Sevastra]

I'm going to guess it's improper tempering on the pins. They could either be too soft, or are too brittle.

Any chance you can take a picture of how they broke?

[Meatwad]

Either chop down some 2mm drills or grab some music/piano wire. Depending on the drill, it may be too brittle though.

[Mudman02]

Originally Posted by Meatwad

Either chop down some 2mm drills or grab some music/piano wire. Depending on the drill, it may be too brittle though.

I'll try the drill bit first and see how it goes. thanks guys.