I need a diff advice.

[Peter30]

Hi.
Guys, i need a advice aboute the MF difs.
I constructed quite big Monster truck, with the 1900KV brushless system, 8 inch tall rampage wheels, MF widened axles and custom made aluminium frame.
The entire structure is fairly bulletproof, except the stocks diffs ( they did't lock).
I was allready litle bit warry about them before first test drive.
Well, i decidet to run first on Lipo 4S 6000Mah 40C.
After a few minutes i blown up front one, and day after ( i was running just 2wd) rear one was give up as well.
Because i want to run 6S and possibly a RC4WD demolished tires in the future, i start to search a buletproof diffs whats can holde this monster.
I found a helical set - MA050 (used in stock VE i think ? ), and some steely straith one from SS.
Wich of them is better , and can easly handle this power ?
I know there is a tons of info on this topic, but I want to hear your opinion firs, before i will buy something.
Any other suggestions aboute buletproof diffs please

[mjderstine]

both of those gears are hardened steel and should work better than the stock gears. the stock gears are pot metal and will break with a lot of power.

make sure that your diff gears are also shimmed correctly. alot of the play will allow the gear to strip more easily.

i have both the hardened straight gears and the helical gears and i have never had either break on a 4s 1900 kv monster truck.

[Peter30]

Originally Posted by mjderstine

both of those gears are hardened steel and should work better than the stock gears. the stock gears are pot metal and will break with a lot of power.

make sure that your diff gears are also shimmed correctly. alot of the play will allow the gear to strip more easily.

i have both the hardened straight gears and the helical gears and i have never had either break on a 4s 1900 kv monster truck.

Ok, i think i will buy helical one.
One more think aboute fitting this one all togheter:
Is it like, its have to be fits perfectly with zero clearance ?
What lubrication should i put on it ?

[mjderstine]

you should put a nice think axle grease on the gears.

you want the mesh to be close but not too tight that the diff case doesnt go together well.