98_k1500
strange noises are normal
The 99 should work. The 93 won't. Biggest difference is the 93 has the neutral safety switch in the column, and nowhere to bolt it on the trans. It also is not a PWM trans, and your computer will burn up the torque converter lock trying to PWM a non-pwm trans. The only difference in a 2wd and 4wd is the output shaft. If you have a 2wd trans, most shops will give you a 4wd output for free and install it pretty cheap. You need to check and see if your 97 has the 2 piece bell housing (full aluminum circle, the bottom of it does not come off). If both transmissions are 2 piece bell housings, its a direct swap. Both will have the same exact trans. If its a 1 piece bell housing, you will need to keep the transfer case adapter with the 99 trans, because it has a 6 bolt pattern and yours will have a 4 bolt. Your transfer case will fit the rear of either adapter.