dssur
+1y
fit yes, bolt up no.
You will need to change: the body harness, the engine harness, the gauge cluster, the motor mounts, the transmission, the transmission crossmember, the driveshaft, the fuel lines, the gas tank, the radiator....
well you get the idea. most does bolt in except the engine mounts, you will need to cut them from the donor truck and weld them into your frame.
the 2.6 may run better, but it is also more fragile. The heads on the 90-93 2.6 have a known defect that is not covered by the dealer, they crack. All of them. If you ever run it hot, if it ever ran hot ever in its lifetime. It is not a question of "if", it is a question of "when". I owned three 2.6 efi trucks. Two I bought with cracked heads, one cracked while I owned it. Buying salavge yard heads is not a solution, they will eventually crack too. There is an upgraded head available from the dealer, at a cost of 900 dollars. Bare.
do a KIA 2.0 swap. 130hp, bolts up to the engine mounts and your transmission. You will need to change the fuel system to EFI.