95 GST trans vs 90 gst trans, can they swap?

Hi all, I have a 95 GST with a 1st gear that Wount engage, I found a working trans on a 90 GST, can I swap them out, or will I have .mounting issues?

Thanx.
Vinn

I believe they do mount differently but it has been a while since I've worked on a 1g... Spline count might be different too. I'd check those things out first...