OK, I called around everywhere trying to get some help on this, but even the dealer couldn't help me. Funny how when I pulled my gauges last time, a dealer in another city had the machine to hook up to the instrument cluster to get the correct reading for a 94-98.
So, I finally decided to just do the math and figure it out from there. Since I had 3.27's and went to 4.10's, I just ratio'd the thing.
3.27 @ 65mph = 1950 rpm.
4.10 @ 65mph = 2444 rpm.
I then figured out what the rpm's should be from 30 to 65 mph in 5 mph incrments, then went for a ride with the face plate removed. I later confirmed my speedo setting by going through a speed trap. I wish there was a funny story here, but sorry. I actually pulled up to the three cops sitting in a parking lot and they had me drive past their trap vehicle. I was two miles and hour over my actual speed. Not bad. I fixed this later on by going 52, and lowering the needle back to 50.
Side note. While talking to the know-it-all officer, he informed me that the factory speedo's have an allowable error of margin of 2%, while the radar guns the police use can have an acceptable error margin of 3%. The police man also informed me that I didn't need to change my needle setting with the switching of my gear ratio, and he procedded to tell me why. I didn't argue with him, I just told him that when a friend paced me I was 5 mph over my actual speed with the speedo recal gear installed. He still didn't listen, so I thanked him and went on my merry way before he decided to shake me down!
So, for all us 94-98 people, use the ratio of your gears, mph, and rpm to help set your needle.
65mph:
ratio rpm
3.27 1950
----=----
4.10 ????
Cross multiply. 4.10's @ 65mph = 2444rpm.