Difference between Fazon and Big Rock CVDs

[RC Detail]

I have both the Fazon and Big Rock and am in the process of going thru the br.
I also received with the Fazon, nip extra outdrives. I had a couple dshafts I got from Jenny’s.

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I wanted to see what the difference was with the outdrives and sliders?
Well, they all interchange?
Is it the metal that’s supposed to be stronger with the Big Rock outdrives?
I mean, how’s a person tell the difference?

All I hear is these cvds/outdrives are beefier, stronger on the Big Rock?
Any help is greatly appreciated.

 

[RC Detail]

I lucked into finding this thread:

https://www.arrmaforum.com/threads/big-rock-standard-differences.2705/
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From it I found this post to be closest to what I’m talking about:

“HD Axles, front, rear, center. I broke a U-joint on rear outer (inside joint) and bought the HD axles. The metal of the U part is slightly thicker, but mine broke the pin holding the U together, which is not replaceable, somehow fused together. “Hopefully the slightly heavier HD version will hold up better, but HR just released upgrade axles, which are about the same price as stock HD versions, or less if you buy all the Arrma pieces separately to make the full axles.

Shocks are supposed to be HD as well, I haven't had the opportunity to compare, but the shock bodies I believe are the same, maybe slightly heavier gauge shock rods and better ends.

Not so obvious is the body mounts, the BR mounts are closer to the corners, which I believe helps keep the body from flexing and cracking, some say the body itself on the BR is thicker. Basically all the plastic pieces on the top of the chassis are different; body mounts (F&R) and taller roll hoop vs Nero cage. The bumpers are different to tie in with the realistic look of the body, and different tires obviously. I really dislike the Sand Scorpion stock Nero tires, changed to the Outcast Backflip tires.

Rod ends may be different, I haven't compared the part numbers. That is pretty much all.