Originally Posted by
got_nitro
Reading your signature you have some nice cars, kinda makes me go

with the e-maxx....
My solution would be to grenade the whole thing whist firing multiple rounds into it

.. Maybe sell it and get another race vehicle?
Seriously, man? Guy comes here looking for help and that's what you want to post? Way to make everybody here on RCTech look bad.
On to Suteki's actual problem:
What motor are you running in that E-Maxx to grenade the Caster 1/8 diffs? I run a 4084-Canned 2-Pole in mine on 5S, and I can't put a dent in these things. 6 months now of serious use running Trencher-X's, including doing not-good things like righting the car off it's lid by slamming Reverse>Forward.
Did you shim the diffs when you assembled them? Are you blowing the spider gears or the Ring & Pinion?
Hyper 7/8/8.5 (Ofna K-Type) diffs fit fine. Bunch of posts on the TRX forums about it. Also means HB Lightning diffs should fit, though I think FLM talks about the HB diffs fitting already.
LST2 diffs also fit inside the FLM Hybrid Bulkheads. There's another option for you. Those actually may be the toughest freakin' diff around anyways.
I'm just wondering what part on which end of the truck you're blowing up. Did you put a 1/5 scale motor in there?