Old thread, but anyways.... When I bought my boat, it only had 120 hrs. Both couplers where shot. The front mounts where off so much that when I tighten the bolts, the rear of the motor would lift off the rear mount throwing the alignment off. Only way both my drives where installed fom the dealer/factory/rigger/whoever, was the drives where installed, then the mounts where tighted. I had to to install 1/4" spacers at the bottom bolts, then taper to nothing at the top bolts. A fugged up install, and they did it on both motors!