There are advantages to the 2008, fuel tank in the front is a major one IMHO, & disadvantages. The same holds true with the later models. The BEST model is probably the new 2011, YES there are new Troopers. The saying I hold to is buy the best that you can afford. In my opinion even if you purchase a new 2011 there will be mods that we have completed here that you will want to still do. Joyner has watch this site and asked the dealers what mods we have done. They have incorporated some of them but not all. The BEST upgrades are Tires/Rims, Cage mods, Shocks & Power Steering IMHO! These will cost so plan for the future.
A few of the biggest upgrades that HAD TO COMPLETED on the 2008 are
The brace on the rear diff must be replaced. The upgrade is stronger rectangle tubing. The original, it will fail, is round tubing.
Rear U-joint driveline replaced with a CV-joint driveline. The U-joint driveline will fail.
Brake rotors upgraded to larger rotors, there was an upgrade kit with master cylinder, new caliper mounts & larger rotors. The original were too small.
Fuel tank filler tube rotated upwards so you can get fuel in the thing.
Sending unit will fail and the replacement was only guaranteed for 30 or 45 days as I remember, wasted money. I have not replaced or fixed mine yet.
These are the main issues on the 2008 that come to mind at the moment.
The intake Air Cleaner is junk on ALL of them, replace immediately with a K&N or similar or you will be rebuilding you engine soon.
ALL of them require, IMHO, Lenny's diff upgrade kit. The later models were suppose to be better but we have not had any feeback.
Hope this helps.
rocmoc n AZ