Diff. Ring Gear Failures

[dr_elvis]

Hey Racers..

After installing then new molded plastic chassis side plates and rear brace me and some of my race mates had often abmormal failures of the diff ring gear in the rear differential.

Has anybody else heard of this and found something to solve the issue? We are discussing if the increased flex is responsible for the damage. We have heard too that at the euros many diff ring gears were killed and most durango drivers used the plastic side plates too.

Thanks in advance

[dpackster1980]

That isn't possible as the gearbox casing would have to flex which can't happen.

Not using enough gear grease would cause it as the pinion gears seem to be a harder metal and you are running metal on metal.

I noticed that mine has a tight spot that I'm trying to solve other than that it's sweet as a nut.

I got a huge tub of molly grease for cheap as chips as I think you get no where near enough in the kit.

[JohnM]

I've been running the plastic side pods on my car for the last month or so, haven't had any problems at all with doing so, let alone the diff gears, and my car was one of the first ones, so the gears are a year old now, so seen plenty of use.

[dr_elvis]

Originally Posted by JohnM

I've been running the plastic side pods on my car for the last month or so, haven't had any problems at all with doing so, let alone the diff gears, and my car was one of the first ones, so the gears are a year old now, so seen plenty of use.

I'd ran my car for more then 10 month now aprox. 5 accu packs per week on expert level like most of my friends. the first failures came after installing plastic side plates.

de

[wacattack]

No problems for me and I've been running the plastic side plates all season (5-6 months)

[telboy]

No problems on mine either.

[dpackster1980]

Originally Posted by dpackster1980

That isn't possible as the gearbox casing would have to flex which can't happen.

Not using enough gear grease would cause it as the pinion gears seem to be a harder metal and you are running metal on metal.

I noticed that mine has a tight spot that I'm trying to solve other than that it's sweet as a nut.

I got a huge tub of molly grease for cheap as chips as I think you get no where near enough in the kit.

Well the tight spot has gone but I've chipped the tops off 2 teeth and it wasn't due to plastic side pods.

It was either caused by the 2mm grub screw on the centre shaft working slightly loose causing the pinion gear moving backwards and forwards.

The second option is I was racing outdoors and the board for the loop wasn't pegged down so I didn't notice and hit it full speed and the cars stopped instantly.

Either way both my fault.

Still runs fine but slighly noisy from the front and it doesn't jump teeth so I'll change it later.