just found these what drives are these 3 or 3a's?
Thread: what drives are these 3 or 3a's?
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02-06-2010 11:01 AM
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02-06-2010 11:37 AM
No good for me then?, still too weak? Would my TRS uppers work or only work with a speedy 2 They are on Ebay $2500 for the pr
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02-06-2010 12:49 PMI'd personally go with Konrads for your change. Much easier (no transom work), replaces the weak links in the TRS drive configuration, and has adjustable heights.
After that, DD is correct almost, I'd go with 5's as a second choice. 5's give you the adjustable height. I don't believe 4's do.Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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02-06-2010 12:55 PM4's and 5' are both the same ..ecsept the 5's are a little stronger , but on a 30 foot boat the 4's are plenty, due to better dynamics on the lower ( less drag )
And u can stick the 5 propshaft in the 4's to give u more strength on that part.
The ratings are only 50 HP diffrents between a 4+5 !!!!
3,4+5 gimbals are diffrent but all work !!!!
Both of the 4+5 are limited to be dropped down 3 inches with spacers.
So i would mount them 1 inch above the bottom and start there, u can always space down,,,but can't cut them off !!!
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02-06-2010 06:31 PMNothing is interchangeable between the # 2's and #3's except the small shaft props. Tailshaft and transom assembly are different.
I would get a good look at them. 2500 is only a good deal if the will hold gearlube. It is easy to spend that much again if they need work. Not all parts are available for them anymore.
Durability wise they would be fine on a 30 Velocity. I don't believe you can run the boat hard enough to hurt those drives.
On height, I would think the prop shafts down 3" would be close to where you want to be.
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02-07-2010 07:30 PMIf you've got gear and bearing problems inside you could drop ten grand plus into them in a hearbeat. $2500 won't get them reshimmed and resealed by nyone that knows what they're doing.
3's were rated at 750 hp. In a light boat you could put more into them with no problem.