I was looking at using these tires from IMEXrc

K-Rock Tires
Height: 6.50"
Width: 3.5"
Diameter: 3.2"

For that size tire you would need good diffs like the 1/8. Not only that but the oil in them helps with slip to. I would go for a14 51 gearing with the 1/8 diffs. Just my suggestion for keep the maintance and breakage down.

One thing I see very wrong is your choice of batteries. The new GP's arent worth a damn so i've heard. I know for a fact that you'll like the IB 4200's as I have some myself. I have hear numberous things about the GP's not holding there voltage under load. The IB's are no doubt the way to go.

Thanks everyone.
coolhand. do you have a link the diffs you are talking about?
Squee: thanks, i will check intot he IB's, they should not be too much more should they?

Mike has some in the store they are hot bodies diffs. Don't get the pro cause it has a lower diff ratio. http://www.rc-monster.com/proddetail...GY_DIFF&cat=47
These would be great to put them in. http://www.rc-monster.com/proddetail...LM18700&cat=47
You can get these from mike as well. If you want to keep your bulkheads you have. http://www.unlimitedengineering.com/...ore/13540.html
or a stronger one http://www.unlimitedengineering.com/...re/13540B.html

so, if i went with those particular tires, i would need that set up. but just the controller and motor, i would be fine with just the CVD's for now? Limited budget so i have to do this in phases...sux:019:

Well you can run the stock diffs but they won't last for ever. I like big tires as well. They are hard on drive line though.

your going to need mod 1 pinions.

They are talking about differentials...


The stocks may last a bit, but like CHC said, they wont last forever. Even a aluminum cup properly shimmed with aluminum diff cases should last atleast a year or so. A perfectly shimmed stock diff will last longer than a unproperly shimmed aluminum diffs.