whats the difference between a muggy and truggy?

[Takedown]

Originally Posted by blueb8llz

do the diffs need upgrading? because he says he didnt do it because he has never seen one break. he says they are hardened steel and spiral cut?....is this true. i heard brushless boy had his cen matrix diffs replaced.
i dont wanna buy a truggy and then down the road, have to replace the diffs...
anyone got opinions?

Most solid truggy diffs made in my opinion. Their cen genesis diffs.