Good info dizzy, I'll look into that
Thx

 

Sorry to resurrect such an old thread, but greenlant, I too am curious exactly which wheels and tires you have on there. I really like the look and have been looking for an upgrade for my Scrammy also. Did you ever get a solution to the rear end?

 

i keep asking does the tire size change mess up differental stock there one inch bigger on front do have to keep that inch different for the gear ratio??????????????

 

i have series 5 wheels with holeshot atr tires. you have to specify 4x4 bolt pattern for the rears. i got a buddy that has a machine shop to make me a lift for the rear. i will try to get pics. probably when i get back from this weekend.

 

I was just thinking that. You are referring to the AWD operation, right?

The AWD engages when the rear tires spin faster than the fronts. So upgrading both front and rears to the same size, say 25", is OK because it makes ratio of difference between front and rear tire speeds smaller (the same speed instead of the fronts slightly slower.)

Switching to 25 rear and 26 front would also be ok. Stock, the rear tires turn 1.0454 times for every one turn of the fronts. With the 25/26 combo, the rears turn 1.04 times for every one front turn. This means the rears are spinning slower, which makes this combination ok.

Technically, you could run any tire combo you wanted by changing the tooth count of the rear sprocket. But that can get complicated.

tyler

 

on mine you flip the switch for 4 wheel drive as long as there not spinnig i thank different then yours ?????????? anyone know....... its on a scammy 500.

 

I am not sure what you just said, but yes there is a switch. The switch does not engage the front wheels, it just "arms the system" if you will, giving the front wheels the ability to engage when needed.

 

it engages front wheels as soon as you turn it on......

 

No it doesnt, it engages the front wheels once the back ones lose traction. Hence AWD instead of 4WD.

 

my 400 any 500 lock as soon as you push the switch and they even stay locked after you turn the switch off because i jacked all the wheels off the ground and experimented.

Bob