I have a 00 Explorer 400 and I just noticed that my front sprocket is a tiny bit hooked. I have deciced to go ahead and change both the f and r sprockets and put on a DID chain while I'm at it. My question is does anybody know if going up two teeth on the rear will screw with the 4-wd?I know there is a certain amount of leeway but I don't know how much. Any information will be greatly appreciated.
Thanks
Joe

 

I was considering changing the gearing on my Xplorer myself - mainly to get a little more speed (but haven't done it yet - or am sure if I will, but on to your question). I talked to a Polaris factory representative at one of our local farm shows as well as Rick Ritter and they both agreed on this. They both said you can gear it UP (for more top speed - smaller rear sprocket or larger front) without goofing anything up, but neither recommended gearing it DOWN (Less speed, more pull - smaller front or larger rear). If I remember right, I think if you gear it down too much, the front axle will not disengage properly, causing difficulty steering.

 

You can change the rear teeth up two because of the lag in the front drive hooking up but when you do this the front will engage sooner we did this on my friends scrambler 400 an have no problems an on my scrambler I have gone from 22" tires to 20" an now my awd is right there no lag at all

 

im not sure what lag has to do with anything,,but i have had a split decision on this. sidewinder said do it,,some say i did it ,, most say dont,,it changes the ratio between front and rear,, and that makes sense to me,,just like different axle ratios in a 4x4 jeep,, ect. i have a scrambler 400 i would love to do this too, but dont wanna break it. who has a factory connection???????we need answers!!lol!!

 

I made the switch. I replaced the 36 tooth rear sprocket with a 38 tooth. The Polaris mech. called the company and they said it was ok. 2 teeth is all you can go up on the Explorer because if you went any higher the sprocket would contact the swingarm. The polaris mech. said it would not interfere with the 4-wd functioning properly. It seemed to give a noticable boost on the low end. I am going to take it out today and see how much topend I have given up.

 

so,JOEMAG,, how does it run??any better response you can feel?? did the 4wd work okay?? i really would like to do this to my 400 srambler. i believe we have the same auto hub set up.

 

The bottom end hits harder. It will fly the front end even easier than before. However it lost about 6-7 mph on the top end. 56 was about all I could get out of it on the pavement.
Joe

 

I changed the counter shaft sprocket on my xplorer. I went from the stock 13 tooth to a 11 tooth sidewinder sprocket. It didn't mess up the front at all. I got a lot more low end power from it. I also replaced the chain with a sidewinder chain. I am pretty happy with it so far.