I'm with brad. I've seen alot of 2.6's overheat from cracked heads. It was a common problem in them in the caravan's and trucks. My dad put 3 engines in the old van we had when i was younger that was a 2.6L. 2 from cracked heads and another threw a rod. Hopefully the radiator takes care of you. My 94 had a radiator from something. Idk what engine it was from. It didn't bolt in right and the hoses were on the wrong sides, it sat in crooked.. it was a mess. The s**ty part is a first gen radiator is smaller UNLESS you get a diesel radiator. It's the same size as the 2nd gen. They cut the supports out larger and put a beefy radiator in these trucks which was adapted for all the 2nd gens. I have 2 first gens, one with a 2.6 5 speed 2wd and other with a 2.3 5 speed 4x4 then my 94 2.4 auto 2wd So I've done alot of research on comparing diesel to gas to 1st vs 2nd gen.