The 22RE/A340F is extremely rare, I've only ever heard of two and they were both in 92-ish trucks. Easy way to tell is the t-case shifter pattern. The A340F is a J-pattern like a manual, the A340H is a dogleg pattern. The 86 model A340H's have a bad rap as the most troublesome year, I don't know why or if it is true. If you have an issue you can always swap in an A340H out of a V6 truck, they are the strongest ones. You will have to pull the pans and swap the wiring harness and also keep your 22R bell and torque converter.
