Originally Posted by Georgeandkira
Hello, Put it in 4WD and see if it bucks horribly in turns.
If you drive on asphalt in 4WD it will "buck" or hop around corners because the transfer case and differentials are trying to rotate all four wheels at the same speed. When you turn, the inside wheels rotate slower than the outside ones. You should NEVER drive in 4HI or 4LO on bare asphalt or you will eventually cause severe damage to either the transfer case, differentals, or driveline components. If you're equipped with Selec-Trac and have the 4 Full-Time option, it doesn't matter, it is essentially All Wheel Drive - like a Subaru or Audi. 4 Part-Time and 4LO are ONLY for low-traction conditions - snow, mud, sand, gravel, etc.
I bought a 2002 3.7L Limited back in '06 and had it ever since. I've put over 130,000km on it (now at 230,000) and it has been a great truck. What Kira said about the CV joint on the front driveshaft at the transfer case end is correct, the rubber boots eventually crack and the CV will become contaminated. Easy fix, the driveshaft comes out with 6 bolts at each end, you can drive it without the front driveshaft if necessary. CV rebuild kits are available for around $70, I think. My radiator cracked at around 205,000km, replacement was around $160CAD, about 2-3 hour job to change it out. Other than that no problems. Just make sure it gets all its regular fluid changes at proper intervals and it should treat you pretty good.
As far as problems with the early engines, my truck was built in 02/02 so probably one of the earliest ones out there and it haven't had to do anything to it, still runs great.. it does consume about 1 to 1.5 quarts of oil between changes though. I'd say fairly typical of an engine with 230K.