Diff upgrade?

[mypoorbrain]

I have searched for this but everyone is having a different problem than me... My rear diff in my 4908 is having problems with the bearing on the pinion disintegrating. I know I am hard on it land jumps while on the throttle, but never full throttle, just enough to control the flight of the truck.

This started to occur when i upgraded to 40 series wheels. Then I twisted the rear center drive shaft out and swapped in a savage dogbone, only making this point more vulnerable...

Is there a different bearing or something that i can switch to that will reduce the chance of this happening? This has happened a couple times now and most recently, chewed the rear diff to bits, ring gear pinion and casing.

 

[2revo1maxx]

Check your bulkheads out. If something's broke that diff case will try to open up under load.

 

[Metalhead Matt]

Back your slipper off a little. This should help to keep a little load out of the rear diff. Helps the whole drivetrain really.

 

[mypoorbrain]

bulkheads are fine...

slipper...good call... now I just feel like a noob... round 3 here we come.

 

[Metalhead Matt]

The slipper is pretty over-looked. If you punch the throttle and it goes, there isn't much of a reason to think about it. You want it to slip just a little off the line. Then when you land off of a big jump on the throttle, it will slip and absorb the shock load.

 

[mypoorbrain]

I was horsing around last summer doing wheelies and I had the slipper set pretty tight... Of course now it just dawned on me