94 gas body on a 95 chassis

[D79w200]

Ok I bought a wrecked 95 mechanical pumped 6.5 powered suburban and plan on putting a 94 body from our gas 350 truck on its frame. Now the 95 was a 454 truck converted to a mechanical pumped 6.5 diesel and it wasn't all hacked together. Someone before me did a really good conversion. The reason being the 95 was rolled and the body is trashed.

Now that being said whats the likely hood that the 95 under hood harness will plug into a 94s firewall? I'm planning on keeping everything from the 95 chassis complete and hopefully just putting the 94 body in it.