You can always downgrade the spring and get an individual marui replacement gear. Mine shoots at 320 now, and working great with a 9.6, just opened it up yesterday after about 10000 rounds, and there is no notable wear besides the shitty bushings, which I'm hoping to do soon.

EDIT: it looks like you have the older version of the Kraken... Mine has new types of gears that I can't really identify

he asked what was the best thing for him to put in his gearbox, granted the reinforced box was an extra but gives a better starting platform to build off of.

The V3, even if not reinforced, would probably take more punishment than a V2

ok after figuring out what to do, i discovered ebaybanned.
im looking at 3 things, high-speed gears, a metal body(mines braking),and a wood kit
ok yes im being little on the cheap side with these gears, and will this metal body fit on a kraken?? please tell me if these are good :)

High speed gears:
http://ebaybanned.com/product_info.php?products_id=2034
Super-High speed gears:
http://ebaybanned.com/product_info.php?products_id=2036
Metal body(not sure if this will fit on kraken):
http://ebaybanned.com/product_info.p...oducts_id=1050
Wood Kit:
http://ebaybanned.com/product_info.p...roducts_id=934

You can't get the metal body into canada, and I wouldn't trust those high-speed gears either.
and I don't see what you would gain from a 13:1 ratio... It probably won't pull a 370fps spring

ok where can i get a metal body then in canada??? and what gears would u suggest??? w/link if possible

classfields section in this website... I would recommend these
http://www.airsoftparts.ca/store2/in...oducts_id=1016
or these if you can't shim gears http://www.airsoftparts.ca/store2/in...oducts_id=1225

thanks alot man, do u kno where i can get a metal body??my POS plastic body is slowly failing on me

Dunno, classfields on this site, and dao has 1 on sale at edmontonairsoft

Im just taking a shot out in the dark here but could the motor be out of place? might need a bit of a turn to get in the right spot. As for the battery, I have had my kraken for multi years and have a 10.8 crane stock and she runs fine. Just my two cents...

ps. im not too concerned with my internals...just waiting for them to go so i can upgrade them!

There is a crane stock for the AK47? I was not aware of that.

nah...just the ak/m4 stock conversion