ha anyone out there put larger wheels on the back of there crossfires?if so did you have to change anything besides the axle.how big did you go and do you have to change the drivers so the track is long enough.also post pics if youve done this.

Are you talking about the furthest low wheels or the upper wheels that affect the track rub on the TSL? I'm not sure if you're aware of thise or not but the upper wheels near the TSL need to be changed to larger ones to prevent the track from rubbing on the TSL when the suspension is unloaded, track fraying\eventual failure will occur if this isn't addressed.

even on the 08 models

Good Q, sorry I didn't even think to ask what year it was, I'm still in last years mode. It's easy to check just lift the rear of the sled right off the ground and see if the track rests on the TSL's.

thanks for advise,but as far as my question, im looking at putting like 8" rear wheels on my sled and if i have to put different drivers on it to make it work.and there must be like a offset axle for this then too.

I have a 06 that I just put 9 inch wheels in the rear. I put a 141" m series track on mine so yes I had to change the drivers to a 3.0 pitch. But I only did that because of the track difference. If you want to leave it a 136" you would have to get an axle kit from someone like mountain machine performance. they are pretty good at making axles and billet wheel kits. I bought 141" rails from edge so i could use my stock axle. but that was kinda expensive. I will send some pics when i get back from montanta in a week. I am very pleased with mine and it looks sweet. good luck and let me know what you are going to do.