alpha one lower unit busted

johnnyb21

johnnyb21

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Sep 23, 2011
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I need a new lower unit for my 02' Regal 1800, 4.3L alpha one outdrive. I know it's been asked before, but each anwser seems to be different. I found a few lower units off 4cyl's. Are they interchangeable? I read the ratio is in the upper, but I've also read of different ratios in the lower units as well??:confused:
 
Bt Doctur

Bt Doctur

Supreme Mariner
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Aug 29, 2004
Messages
19,494
Re: alpha one lower unit busted

All Alpha lowers should be the same. GEN II lowers will not work. Doubtful you have an Alpha on a such a new boat.
More likely a alpha GEN II model and lower unit ratios come into play.
 
P

Pete104

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Apr 30, 2011
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1,439
Re: alpha one lower unit busted

What exactly is "busted"? Maybe we can fix it!
 
johnnyb-21

johnnyb-21

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Sep 24, 2010
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Re: alpha one lower unit busted

Pete104 said:
What exactly is "busted"? Maybe we can fix it!
Click to expand...


I don't think this one can be fixed. I hit a rock and broke the skag off. When it broke, it took a chunk of the casing with it as big as your fist !! Lost all the drive oil too.
 
Don S

Don S

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Aug 31, 2004
Messages
62,321
Re: alpha one lower unit busted

You have an Alpha I Gen II outdrive. If you find a used lower, just be sure they know what ratio drive it came from. As long as it wasn't a 2.0 or 2.40 gear ratio the lowers are the same.

This chart shows the different tooth counts in the upper and lower gears.

attachment.php
 
T

TilliamWe

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Dec 21, 2004
Messages
6,579
Re: alpha one lower unit busted

Are these lower units you've found used? if so, why bother? A BRAND NEW (with 3 year warranty that includes striking objects) SEI lower unit is $845, right here at Iboats.
 
johnnyb-21

johnnyb-21

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Sep 24, 2010
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Re: alpha one lower unit busted

TilliamWe said:
Are these lower units you've found used? if so, why bother? A BRAND NEW (with 3 year warranty that includes striking objects) SEI lower unit is $845, right here at Iboats.
Click to expand...




I live in Canada, so add shipping, and duty, and you're up over $1200 for a new one. It's probably the route I'll take, but i'd like to see if I can find a used one first.
 
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