So I have a jet tunnel from a 1997 GS I think, this is because I bought a pump shoe and it was too long. After digging through some manuals I found that the GS has a shorter tunnel. So here's my question. Are there 2 different lengths of driveshaft for the later 90's Sea Doo pumps? I placed the pump and driveshaft in today and it looks like the driveshaft is way longer than it should be. Moving my engine too far forward. I bought the different pieces to build a mini jet boat.