I am pretty familiar with the 1500 series Tahoes and Suburbans. I have owned both an 02 Suburban and have an 01 Tahoe currently. I have limited knowledge with the 2500s. There are two 2500s for sale locally that I am considering. I would like the extra towing capacity so I am not so limited to the size travel trailer I plan to purchase. One is an 07 2500 4x4 with the 6.0 liter 120k. The other is an 03 2500 4x4 6.0 liter 86k. Both are in near mint condition in and out with clean carfax and seem to have been maintained. The 03 is $3500 cheaper than the 07. Is there any known problems I should be aware of with either. Leaning toward the 07 for the newer look but the lower mileage on the 03 would be nice. Any input would be appreciated.