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-   -   Need help ID'ing this... (https://www.offshoreonly.com/forums/drives-lower-units/254883-need-help-iding.html)

bigo181979 06-01-2011 04:23 PM

Need help ID'ing this...
 
Well my trans is toast... Seals are gone and when I pulled the drive last night the splines are looking really bad...

There is an ID badge on it that says:
Mercruiser Marine
Model number 400
Serial Number 6844291

http://i37.photobucket.com/albums/e6.../BOATTRANS.jpg
So what do I need to search for to replace this thing....

JasonSmith 06-01-2011 04:27 PM

Turbo probably has some used ones he'd sell for retail +10%

Baja 278 06-01-2011 04:36 PM

Isn't that an old TRS transmission?

bigo181979 06-01-2011 04:53 PM


Originally Posted by JasonSmith (Post 3417751)
Turbo probably has some used ones he'd sell for retail +10%

Lol yeah i hear that...
I pulled the drive last night over at Sacket's place and well aparently driving in reverse for a weekend wasnt the best idea lol.

bigo181979 06-01-2011 04:54 PM


Originally Posted by Baja 278 (Post 3417758)
Isn't that an old TRS transmission?

Most likely... The boat has speedmaster II's on it but I don't know what to search for on here or ebay...

JasonSmith 06-01-2011 04:56 PM

I think that is pretty common stuff in there. I'd bet A & Red's could hook a brotha up.
And yes, driving in reverse was not a good idea. Those transmissions don't like to be loaded in reverse. That gear is meant for idle only from my understanding.

lakematdude 06-01-2011 04:56 PM

About all I can tell you is it's a 1984 MERCRUISER 400

northernoffshore 06-01-2011 05:22 PM

I have drive shafts and carriers for those.

bigo181979 06-01-2011 06:17 PM

The splines inside the trans are toast the splines on the drive shaft are fine. The trans needed rebuilt anyway, I am just trying to weigh my options of buying a used one and having a spare to rebuild and put in when the other one does the same thing, or just rebuilding this one...

bigo181979 06-01-2011 06:47 PM

I guess what I want/need to know is are these the same as a Borg Warner 71c or 72c or any velvet drive trans or what...

picklenjim 06-01-2011 08:51 PM

You got a pic of the entire trans?

bigo181979 06-01-2011 09:17 PM


Originally Posted by picklenjim (Post 3418039)
You got a pic of the entire trans?

No its still in the boat...

I did pull these numbers off the side...

10-05-065-901

not sure what that means, there was also a WG and a DIV cast into it as well..

bigo181979 06-01-2011 09:45 PM

Well after doing a bunch of internet searching looks like I missed the tag on the trans... does anyone have a good pic of the trans ID tag on a B.W. trans..

abones 06-01-2011 09:59 PM


Originally Posted by bigo181979 (Post 3417878)
I guess what I want/need to know is are these the same as a Borg Warner 71c or 72c or any velvet drive trans or what...

Yes I believe a Borg Warner transmissions are the same 71c has one forward clutch plate and 72c has two forward plates, (I believe) I had a 1987 400 with a Borg Warner 72c, should be interchangeable! I have a #2 speedmaster if you need one. Hope you find a trans soon

picklenjim 06-01-2011 10:29 PM

Tag will be on the port side towards the front facing up. If it's a red tag and the model number starts off as 10-17 than it's a 71c. If it's a green tag and the model number starts off as 10-18 than it's a 72c.

Is it possible that ID tag is for the engine? They did make the 400 cyclone from '80 to '86.

Mbam 06-02-2011 06:49 AM

Most likley thats a 72 series. You need a 1018-014. The part that connects to the drive comes from Mercury. That should be easy to find here, if not we have a bunch of them rebuilt with new bearings & seals ready to go.

bigo181979 06-02-2011 09:10 AM


Originally Posted by abones (Post 3418129)
Yes I believe a Borg Warner transmissions are the same 71c has one forward clutch plate and 72c has two forward plates, (I believe) I had a 1987 400 with a Borg Warner 72c, should be interchangeable! I have a #2 speedmaster if you need one. Hope you find a trans soon

Do you have a left or a right rotating ssm II?


Originally Posted by picklenjim (Post 3418156)
Tag will be on the port side towards the front facing up. If it's a red tag and the model number starts off as 10-17 than it's a 71c. If it's a green tag and the model number starts off as 10-18 than it's a 72c.

Is it possible that ID tag is for the engine? They did make the 400 cyclone from '80 to '86.

The tag is on the bell housing for the trans, So I am guessing that its for the bellhouse not the trans, I am gonna go double check and see if I can find a tag on the trans it self tonight. The motors are Mark IV 502's.

abones 06-02-2011 01:54 PM

[QUOTE=bigo181979;3418406]Do you have a left or a right rotating ssm

Left Hand, I ran two L/H rotating drives on and older cat, they are stronger by design!

bigo181979 06-02-2011 05:05 PM

[QUOTE=abones;3418645]

Originally Posted by bigo181979 (Post 3418406)
Do you have a left or a right rotating ssm

Left Hand, I ran two L/H rotating drives on and older cat, they are stronger by design!

I have 3 left hand drives, and 1 left hand prop and 1 right hand prop. I'll probably just end up selling a bunch of other parts and buy a new left prop...

JasonSmith 06-02-2011 05:09 PM

Sell them all & buy these:
http://www.offshoreonly.com/classifi...o38889-en.html

bigo181979 06-02-2011 08:18 PM


Originally Posted by JasonSmith (Post 3418798)

I know where I can get a pair for cheaper yet.... I just don't have the coin right now, not sure if you heard but I filled for a divorce 3 weeks ago...

I am half tempted to sell 2 drives and buy 1 konrad for the right, but thats probably not gonna happen either.


So I went and found the Velvet drive tag, it says:
Model 10-18-014
1 to 1 ratio
serial # 9369

So is this a 71c or 72c...

and whats the difference between them anyway?

bigo181979 06-02-2011 08:29 PM

Oh wait just figured it out. 10-18 = 72C

JasonSmith 06-02-2011 08:56 PM

I knew you were getting divorced. Expensive club to join.....
Desert Storm 2012?

bigo181979 06-03-2011 12:07 AM


Originally Posted by JasonSmith (Post 3419011)
I knew you were getting divorced. Expensive club to join.....
Desert Storm 2012?

Well as long as I get to keep the ford, and the boat is running I am thinking yes...


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