The 8 1/4 thread

I have an 8.25" in a 1977 Volare wagon with a suregrip, and I am wanting to switch gears. Someone local to me is selling a complete 2008 dakota 8.25 axle with 3.55 gears. Wondering if the 3.55 ring and pinion will work on the older carrier. I believe my current gears are 2.94 ratio.

Any help is appreciated!