We have an Exmark 36 WB with the Peerless 5 spd w/ reverse trans and 9 splines on it. The trans just went and we are looking to replace it. Exmark says that the number for this trans is 323500. I see it's a Peerless by Tecumseh. I'm also seeing that the replacement for the 323500 is a 700-070. A company I've been looking at sells a replacement for the 700-070, which happens to be the number 700-078 and 700-078A. So, with all these numbers, what the heck am I supposed to buy now? I figured this would be a simple task. Will the 9 spline 700-078 work for my 36" WB? Thanks.