I've had 9 of them over the years, The number 8 as a v-6 LT model and I had timing chain issues at just 70k. It was a 2000 and the chain tensioner was stated in a GM release to be faulty from the get go on the 2000 and 2001 V-6's. Than here I am with number 9 a lovely 2002 with yet again the same issues, I have now found another GM notice that the issue is through the 2002 models also.
Over all they're a great small very capable 4x4 that's fun to drive and tough full frame design. If you go to Rock Auto you'll see the timing kit for around $225 and I paid approx $400 for the install. The 4 banger is a little under powered but a great engine, they're harder to find, the V-6 is smooth running and a strong runner, I had one with just over 180k in a 2003 model great runner.
Cost is a factor and they have been cheap to purchase, this one was just $1,000 off Craigslist with just 70k on the clock, one owner but 61 that right 61 sticker on the auto, it cleaned up great and is now a great driver.
Good cheap 4x4!