Can anyone tell me why there is openings on the bottom of the vehicles where the spur gears and flywheel are ? You would think if they were covered, less dirt could enter. The only thing I can think of is for cooling or ease of access. I am probably missing something obvious, I am quite new to all this. Thanks
[ Tsunami - with clutch upgrade ]

Dunno, maybe so that dirt can't build up in there?

so stuff can be thrown out instead of trapped near the spur gears.

Not a lot of box user here ? [&:]

LOL, it's for a bump a box. The bump box wheel fits in that groove so it can rub against the fly wheel and turn the engine over

or that too, lol. i have a bump box just never really use it.

OK wise guy what is the hole under the center diff for then HAHA

lol thats true, i just looked at my car, that is what i thought they were talking about. i didnt even think about the flywheel opening.

I squirt alittle grease in there with a syringe every so often, I figured that's what it was for.

good nough for me lol

Thanks , I knew there had to be a reason, just wasn't sure what it was.

its for changing earlier or later shifts in the 2 speed