Ofna Spider Center vs front rear diffs

So I am trying to find some Ofna 8 gear diffs (4) and was wondering if there is any difference between the center diff and the front/rear diff besides the gear bolted to it... can you get a front/rear gear an put it on a center diff and vice versa? Can't seem to find specs anywhere.

Thanks.

[MetalMan]

From my experience they are the same, give or take a shim (custom shimming is generally a good idea anyways).

[Patrick]

The center diff outdrives will have flat spots for the brake pads, but if your not using mech brakes you won't need to worry about it.

[MetalMan]

Ah, good point. Totally slipped my mind. But as mentioned, the flat spots will work in the front/rear as well.

I was just noticing that front and rear diffs are rare, centers are a plenty... buying the gear isn't cheap, so it might not make sense to convert.

Why are you trying to go with 8 gear diffs? What's the difference?

[George16]

They are the same. The only thing different are the drive cups. I have 6, 8 front diff and also center.

I guess the theory is that the torque is distributed over the surface area (faces of the spider gears) of 8 gears instead of 6 or 4, making it stronger and less likely to shear or break a pin.

George16... my only question: Will I have to put different pinions in (3905 E-maxx or Jammin buggy)? I know you have done a lot with gears...

And I found them at Dinball for $56 a piece (Front/Rear)... posted on the good deal thread.

[lincpimp]

They do have al cups and 6 screws holding the spur/crown gear on. They will be stronger, but weigh more. Not really needed for a buggy...IMO!

How about a 3905 with 6S and a Neu 1515?

[George16]

Originally Posted by blfischer

George16... my only question: Will I have to put different pinions in (3905 E-maxx or Jammin buggy)? I know you have done a lot with gears...

Yes. It all depends on what final gearing you want to run.