build a gmaxx and i need help

[JoFreak]

are the revo-diffs so much cheaper than the hot bodies diffs here in Mike's shop?
65$ including pinion and ballbearings sounds quite cheap to me.

to answer your first question: yep, more or less every 1/8 diff is a direct fit, at least I don't know any diffs that wouldn't fit.
If you are going to take the hot bodies diffs you should get the drivecups from HB and some shims as well...