Anyone got any info on a Merc #7 Drive? It looks to have a #6 upper and a cresent style lower with the large #6 propshaft. The drive does appear to be longer than a #6. Anyone have any experience with these/results?
Thread: Mercury #7 Drive
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02-03-2010 08:10 PM
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02-04-2010 11:32 PMTotal production on the #7 drives was 8. There was no market for them at the time they were introduced. They were a #6 drive with a longer(deeper) lower half, to swing large diameter wheels, intended to be marketed to the sport cruiser manufacturers.
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02-04-2010 11:42 PMThere are a couple for sale reasonably priced. I was looking to put a six on a single 750HP 30 footer then these popped up. Do they have any high speed potential with that particular lower? Wet or Dry sump?
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02-05-2010 12:38 AM
Its a diesel drive
God forgives.....The 1% doesn't!!!!!!
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02-05-2010 09:38 AMWhy in god's name would you consider an obsolete drive, that they only produced a quantity of eight of, that you can't get serviced or parts for, that can never be replaced as a whole unit again, as a complete bolt-on, or even using the same transom cut-out X-demension? But if your that interested...go for it(?)!
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02-09-2010 10:58 PMConsidering it because the upper is a #6 with 1.5 gears. Parts are available for the #6. For a single 750-800HP on a fairly light 30 footer I doubt it would ever break. I was inquiring about the length of the drive to see if it would work for my application which was answered above. At 6K for a new #7 in the box and an accompanying used #6 transom assy for another 6K I think it would be a good deal for a bullet proof drive. Even if I had to purchase a rebuilt #6 wet sump lower I would still be around 16K for a bullet proof drive and wouldn't need to buy the external aftermarket steering. I plan on using a driveline anyway to get the motor fwd so I'll add a tranny. What's a new ITS/Bravo XR going for?? And then add in a spare drive to swap to when I break the first one.
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02-09-2010 11:16 PM
Last edited by MOBILEMERCMAN; 02-09-2010 at 11:22 PM.
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02-09-2010 11:23 PMThanks for posting those ,Jim !
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02-09-2010 11:28 PM
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